School. Team Number. Optics

Size: px
Start display at page:

Download "School. Team Number. Optics"

Transcription

1 School Team Number Optics

2 Physical Optics (30%) Proceed to the laser shoot (40%) when your team number is called. 1. What are the four colors used in the CMYK color model? (2 points) 2. Muscae Volitantes are microscopic particles of cellular debris freely floating in what part of the eye? (1 point) 3. Suppose that the electric field of an electromagnetic wave decreases in magnitude. Does the magnetic field increase, decrease, or remain the same? (1 point) 4. Two galaxies have their Doppler shifts measured from earth. Galaxy A has its spectral lines redshifted by 200 nm, and Galaxy B has its spectral lines blue-shifted by 300 nm. (2 points) a. Which galaxy is moving faster? b. Which galaxy is moving away from us? 5. In a dark room, magenta light is shined on a green T-shirt. What color does the T-shirt appear to be? (1 point) 6. What is an emission (bright line) spectrum? (2 point)

3 7. In meters per second, what is the speed of light in a vacuum? (1 point. ½ point if rounded to 3) 8. Light is most refracted when it enters what part of the eye? (1 point) 9. Explain why a lump of sugar appears white even though each individual grain is transparent. (2 points) 10. A spaceship is moving away from an asteroid at a relative velocity of x 10 8 m/s. The spaceship sends a signal with a frequency of 5 x 10 6 Hz to a base located on the asteroid. What is the frequency of the signal measured by the base? (2 points)

4 11. What is the slowest recorded speed of light? (1 point) 12. Surgically removing what part of the eye greatly improves UV sensitivity? (1 point) 13. A beam of yellow light and a beam of magenta light are both shined on a white wall. What color does the wall appear to be? (1 point) 14. What type of cell is responsible for color vision? (1 point) 15. When light with a wavelength of 350 nm is shined on a sample of highlighter fluid, the fluid emits a bright yellowish green grow. a. What is the frequency of the original light? On what portion of the electromagnetic spectrum is this light?(2 point) b. What is the name for the glowing of the highlighter fluid? (1 point)

5 16. Would an object moving left to right with respect to you have a Doppler shift? Why or why not? (2 points) 17. What primary color is the human eye most sensitive to? (1 point) 18. Arrange the seven main types of electromagnetic radiation form lowest to highest frequency (4 points;.5 point for each given, 1 point for correct order,.5 point for lowest to highest) 19. What type of spectrum is produced by electrons dropping from an excited state to a lower energy state? (1 point) 20. What part of the eye has a structure similar to an onion, made up of about 22,000 very fine layers? (1 points) 21. What color is a perfect mirror? (1 point)

6 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Snow reflects almost all of the light incident upon it. However, a single beam of light is not reflected in the form of parallel rays. This is an example of reflection off of a surface. a. regular; rough c. diffuse; specular b. regular; specular d. diffuse; rough 2. When incoming rays of light strike a flat mirror at an angle close to the surface of the mirror, the reflected rays are a. inclined high above the mirror s surface. b. parallel to the mirror s surface. c. perpendicular to the mirror s surface. d. close to the mirror s surface. 3. When a straight line is drawn perpendicular to a flat mirror at the point where an incoming ray strikes the mirror s surface, the angles of incidence and reflection are measured from the normal and a. the angles of incidence and reflection are equal. b. the angle of incidence is greater than the angle of reflection. c. the angle of incidence is less than the angle of reflection. d. the angle of incidence can be greater than or less than the angle of reflection. 4. If a light ray strikes a flat mirror at an angle of 14 from the normal, the reflected ray will be a. 13 from the mirror s surface. c. 90 from the mirror s surface. b. 27 from the normal. d. 14 from the normal. 5. If you stand 3.0 m in front of a flat mirror, how far away from you would your image be in the mirror? a. 1.5 m c. 6.0 m b. 3.0 m d m 6. Which of the following best describes the image produced by a flat mirror? a. virtual, inverted, and magnification greater than one b. real, inverted, and magnification less than one c. virtual, upright, and magnification equal to one d. real, upright, and magnification equal to one 7. In the diagram above, the image of object B would be a. real, reduced, and upright. c. virtual, reduced, and inverted. b. virtual, enlarged, and upright. d. virtual, reduced, and upright. 8. Which best describes the image of a concave mirror when the object is located somewhere between the focal point and twice the focal-point distance from the mirror? a. virtual, upright, and magnification greater than one b. real, inverted, and magnification less than one c. virtual, upright, and magnification less than one

7 d. real, inverted, and magnification greater than one 9. A parabolic mirror, instead of a spherical mirror, can be used to reduce the occurrence of which effect? a. spherical aberration c. chromatic aberration b. mirages d. light scattering 10. Refraction is the term for the bending of a wave disturbance as it passes at an angle from one into another. a. glass c. area b. medium d. boundary 11. Which is an example of refraction? a. A parabolic mirror in a headlight focuses light into a beam. b. A fish appears closer to the surface of the water than it really is when observed from a riverbank. c. In a mirror, when you lift your right arm, the left arm of your image is raised. d. Light is bent slightly around corners. 12. The of light can change when light is refracted because the wavelength changes. a. frequency c. color b. media d. transparency 13. Light is NOT refracted when it is a. traveling from air into a glass of water at an angle of 35 to the normal. b. traveling from water into air at an angle of 35 to the normal. c. striking a wood surface. d. traveling from air into a diamond at an angle of When light passes at an angle to the normal from one material into another material in which its speed is higher, a. it is bent toward the normal to the surface. b. it always lies along the normal to the surface. c. it is unaffected. d. it is bent away from the normal to the surface. 15. When a light ray moves from air into glass at an angle of 45, its path is a. bent toward the normal. c. parallel to the normal. b. bent away from the normal. d. not bent. 16. Which of the following describes what will happen to a light ray incident on a glass-to-air boundary at greater than the critical angle? a. total reflection c. partial reflection, partial transmission b. total transmission d. partial reflection, total transmission 17. Atmospheric refraction of light rays is responsible for which effect? a. spherical aberration c. chromatic aberration b. mirages d. total internal reflection in a gemstone 18. If atmospheric refraction did not occur, how would the apparent time of sunrise and sunset be changed? a. Both would be later. b. Both would be earlier. c. Sunrise would be later, and sunset would be earlier. d. Sunrise would be earlier, and sunset would be later.

8 Short Answer 19. What type of reflection is illustrated in the figure above? 20. What type of reflection is illustrated in the figure above? 21. When rays of light are incident upon a spherical mirror far from the principal axis, fuzzy images form. What is this characteristic of spherical mirrors? 22. Spherical aberration may be avoided by employing a mirror or by making sure that the diameter of a spherical mirror is sufficiently. 23. The focal point and center of curvature of a spherical mirror all lie along the.

9 24. When does refraction occur? 25. Why is it impossible to see an atom with a compound microscope? 26. In a refracting telescope, is the image upright or inverted? Explain. 27. The critical angle for internal reflection inside a certain transparent material is found to be 48. If entering light has an angle of incidence of 52, predict whether the light will be refracted or whether it will undergo total internal reflection. 28. Why do motorists sometimes see what appear to be wet spots on the road on a dry summer day?

10 29. What is dispersion? 30. What is the position and kind of image produced by the lens above? Draw a ray diagram to support your answer.

11 Problem 31. Where would the image of a 4.0 cm tall object that is 12 cm in front of a flat mirror be located? 32. A convex mirror has a focal length of 17 cm. What is the radius of curvature? 33. A ray of light passes from air into fluorite (n = 1.434) at an angle of 19 to the normal. What is the refracted angle? 34. An object is placed along the principal axis of a thin converging lens that has a focal length of 22 cm. If the distance from the object to the lens is 36 cm, what is the distance from the image to the lens? 35. A ray of light travels across a liquid-to-glass interface. The index of refraction for the liquid is 1.75 and 1.52 for the glass. If the light meets the interface at an angle of 59, predict whether the light will be refracted or whether it will undergo total internal reflection.

12 Camas Division B Invitational Optics KEY Physical Optics 1. Cyan, Magenta, Yellow, Black 2. Vitreous Humor 3. Decrease 4. A. Galaxy B B. Galaxy A 5. Black 6. Spectrum of frequencies of electromagnetic radiation emitted by the element s atoms or the compound s molecules when they are returned to a lower energy state ,792, Cornea 9. The grains are small but much larger than the wavelengths involved, so light enters each transparent particle, is reflected and refracted several times, and emerges. There is no distinciton among any of the frequency components, so the reflected light reaching the observer is white x 10 7 Hz Lens 13. Pink 14. Cone 15. a THz ; Ultraviolet (UVa) b. Fluorescence. 16. Yes. It is moving away from you. (The speed can be found using the Pythagorean theorem) 17. Green (or Yellow) 18. Radio, Microwave, Infrared, Visible, UV, X-Ray, Gamma 19. Absorption spectrum 20. Lens 21. White

13 Geometric Optics MULTIPLE CHOICE 1. ANS: D DIF: I OBJ: ANS: D DIF: I OBJ: ANS: A DIF: I OBJ: ANS: D DIF: II OBJ: ANS: C DIF: I OBJ: ANS: C DIF: I OBJ: ANS: D DIF: I OBJ: ANS: D DIF: IIIB OBJ: ANS: A DIF: I OBJ: ANS: B DIF: I OBJ: ANS: B DIF: II OBJ: ANS: C DIF: I OBJ: ANS: C DIF: I OBJ: ANS: D DIF: I OBJ: ANS: A DIF: II OBJ: ANS: A DIF: I OBJ: ANS: B DIF: IIIB OBJ: ANS: C DIF: I OBJ: SHORT ANSWER 19. ANS: diffuse DIF: I OBJ:

14 20. ANS: specular DIF: I OBJ: ANS: spherical aberration DIF: I OBJ: ANS: parabolic; small DIF: I OBJ: ANS: principal axis DIF: I OBJ: ANS: Refraction occurs when light s velocity changes. DIF: I OBJ: ANS: In order to be seen, the object under a microscope must be at least as large as a wavelength of light. An atom is several times smaller than a wavelength of visible light. DIF: II OBJ: ANS: It is inverted on the objective lens, and the eyepiece magnifies this inverted object. DIF: I OBJ: ANS: The light will undergo total internal reflection. DIF: IIIB OBJ: ANS: Light rays from the blue sky above are refracted by the warm air next to the dark, hot road and end up traveling upward into the motorists eyes. DIF: I OBJ:

15 29. ANS: Dispersion is the process of separating polychromatic light into its component wavelengths because n is a function of wavelength for all material mediums. Snell s law says that the angles of refraction will be different for different wavelengths even if the angles of incidence are the same. DIF: I OBJ: ANS: A real image will be produced between F and 2F. PROBLEM DIF: II OBJ: ANS: 12 cm directly behind the mirror DIF: I OBJ: ANS: 34 cm DIF: IIIB OBJ: ANS: 13 DIF: IIIA OBJ: ANS: 0.57 m DIF: IIIB OBJ:

16 35. ANS: The light will be refracted. DIF: IIIB OBJ:

Chapter Ray Optics and Optical Instrument

Chapter Ray Optics and Optical Instrument Chapter Ray Optics and Optical Instrument Q1. Focal length of a convex lens of refractive index 1.5 is 2 cm. Focal length of the lens when immersed in a liquid of refractive index of 1.25 will be [1988]

More information

UNIT-5 EM WAVES UNIT-6 RAY OPTICS

UNIT-5 EM WAVES UNIT-6 RAY OPTICS UNIT-5 EM WAVES 2 Marks Question 1. To which regions of electromagnetic spectrum do the following wavelengths belong: (a) 250 nm (b) 1500 nm 2. State any one property which is common to all electromagnetic

More information

VISIBLE LIGHT. L 32 Light and Optics [2] Seeing through the window. Windows behaving as mirrors. Seeing through a window

VISIBLE LIGHT. L 32 Light and Optics [2] Seeing through the window. Windows behaving as mirrors. Seeing through a window L 32 Light and Optics [2] Measurements of the speed of light The bending of light refraction Total internal reflection Dispersion Dispersion Rainbows Atmospheric scattering Blue sky and red sunsets Mirrors

More information

Name: Class: Date: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

Name: Class: Date: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. Name: Class: Date: AP REVIEW 3 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.. For a mass hanging from a spring, the maximum displacement the

More information

Chapter 26: Properties of Light

Chapter 26: Properties of Light Lecture Outline Chapter 26: Properties of Light This lecture will help you understand: Electromagnetic Waves The Electromagnetic Spectrum Transparent Materials Opaque Materials Seeing Light The Eye Electromagnetic

More information

Electromagnetic Waves

Electromagnetic Waves 4/15/12 Chapter 26: Properties of Light Field Induction Ok, so a changing magnetic field causes a current (Faraday s law) Why do we have currents in the first place? electric fields of the charges Changing

More information

SPECTRUM. Dispersion. This phenomenon can be observed in a lab environment using a

SPECTRUM. Dispersion. This phenomenon can be observed in a lab environment using a SPECTRUM Dispersion The phenomenon due to which a polychromatic light, like sunlight, splits into its component colours, when passed through a transparent medium like a glass prism, is called dispersion

More information

DEPARTMENT OF NATURAL SCIENCES. PHYS 1112, Exam 3 Section 1 Version 1 December 6, 2004 Total Weight: 100 points

DEPARTMENT OF NATURAL SCIENCES. PHYS 1112, Exam 3 Section 1 Version 1 December 6, 2004 Total Weight: 100 points TIME OF COMPLETION NAME SOLUTION DEPARTMENT OF NATURAL SCIENCES PHYS 1112, Exam 3 Section 1 Version 1 December 6, 2004 Total Weight: 100 points 1. Check your examination for completeness prior to starting.

More information

Einstein Classes, Unit No. 102, 103, Vardhman Ring Road Plaza, Vikas Puri Extn., Outer Ring Road New Delhi , Ph. : ,

Einstein Classes, Unit No. 102, 103, Vardhman Ring Road Plaza, Vikas Puri Extn., Outer Ring Road New Delhi , Ph. : , 1 O P T I C S 1. Define resolving power of a telescope & microscope and give the expression for its resolving power. 2. Explain briefly the formation of mirage in deserts. 3. The radii of curvature of

More information

Unit 4 Parent Guide: Waves. What is a wave?

Unit 4 Parent Guide: Waves. What is a wave? Unit 4 Parent Guide: Waves What is a wave? A wave is a disturbance or vibration that carries energy from one location to another. Some waves require a medium to transmit the energy whereas others can travel

More information

CHAPTERS: 9.1, 10.1 AND 10.2 LIGHT WAVES PROPERTIES

CHAPTERS: 9.1, 10.1 AND 10.2 LIGHT WAVES PROPERTIES Name Period CHAPTERS: 9.1, 10.1 AND 10.2 LIGHT WAVES PROPERTIES ACTIVITY LESSON DESCRIPTION SCORE/POINTS 1. NT WAVES FOLDABLE (blue, green & yellow completely filled in.) /30 /30 2. WS READING GUIDE FOR

More information

Grade 8 Science Unit 2: Optics Chapters 4, 5 and 6

Grade 8 Science Unit 2: Optics Chapters 4, 5 and 6 Grade 8 Science Unit 2: Optics Chapters 4, 5 and 6 At the end of this unit, students will be expected to 1. Provide examples of ideas and theories of light used in the past to explain observed properties.

More information

Ch Guided Reading Sound and Light

Ch Guided Reading Sound and Light Name Date Hour Chapter 15 Answer Key Ch.15-18 Guided Reading Sound and Light 1. Compare the speed of sound as it travels within a liquid, a solid, and a gas. Why does the speed of sound differ? Sound travels

More information

Optics in a Fish Tank Demonstrations for the Classroom

Optics in a Fish Tank Demonstrations for the Classroom Optics in a Fish Tank Demonstrations for the Classroom Introduction: This series of demonstrations will illustrate a number of optical phenomena. Using different light sources and a tank of water, you

More information

SECTION 3 & 4 LIGHT WAVES & INFORMATION TRANSFER

SECTION 3 & 4 LIGHT WAVES & INFORMATION TRANSFER SECTION 3 & 4 LIGHT WAVES & INFORMATION TRANSFER Light Waves Light is a type of energy that travels as waves. Light is different than other waves because it does not need matter to travel. Light waves

More information

Light.notebook May 03, 2016

Light.notebook May 03, 2016 Unit 4 Light LIGHT.1 Describe the ray model of light. 16.1 LIGHT.2 Predict the effect of distance on light s illuminance. 16.1 LIGHT.3 Explain polarization and the Doppler effect. 16.2 LIGHT.4 Describe

More information

PHYSICS. Ray Optics. Mr Rishi Gopie

PHYSICS. Ray Optics. Mr Rishi Gopie Ray Optics Mr Rishi Gopie Ray Optics Nature of light Light is a form of energy which affects the human eye in such a way as to cause the sensation of sight. Visible light is a range of electromagnetic

More information

0.4 s 0.8 s 1.5 s. 2.5 s. 2. A beam of light from a ray box spreads out as shown in the diagram and strikes a plane mirror.

0.4 s 0.8 s 1.5 s. 2.5 s. 2. A beam of light from a ray box spreads out as shown in the diagram and strikes a plane mirror. 1. ship is fitted with echo-sounding equipment. pulse of sound is sent downwards from the ship at a speed of 1500 m/s. The seabed is 600m below the ship. How long will it take the pulse of sound to return

More information

SECTION A Waves and Sound

SECTION A Waves and Sound AP Physics Multiple Choice Practice Waves and Optics SECTION A Waves and Sound 1. Which of the following statements about the speed of waves on a string are true? I. The speed depends on the tension in

More information

Quiz 5 PRACTICE--Ch12.1, 13.1, 14.1

Quiz 5 PRACTICE--Ch12.1, 13.1, 14.1 Nae: Class: Date: ID: A Quiz 5 PRACTICE--Ch2., 3., 4. Multiple Choice Identify the choice that best copletes the stateent or answers the question.. A bea of light in air is incident at an angle of 35 to

More information

Core Concept. PowerPoint Lectures to accompany Physical Science, 8e. Chapter 7 Light. New Symbols for this Chapter 3/29/2011

Core Concept. PowerPoint Lectures to accompany Physical Science, 8e. Chapter 7 Light. New Symbols for this Chapter 3/29/2011 PowerPoint Lectures to accompany Physical Science, 8e Chapter 7 Light Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Core Concept Light is electromagnetic radiation

More information

PHYS 160 Astronomy Test #2 Fall 2017 Version A

PHYS 160 Astronomy Test #2 Fall 2017 Version A PHYS 160 Astronomy Test #2 Fall 2017 Version A I. True/False (1 point each) Circle the T if the statement is true, or F if the statement is false on your answer sheet. 1. A blackbody emits all of its radiation

More information

Physics 104 Exam 3 April 24, Name ID # Section # TA Name

Physics 104 Exam 3 April 24, Name ID # Section # TA Name Physics 104 Exam 3 April 24, 2003 Name ID # Section # TA Name Fill in your name, student ID # (not your social security #), and section # (under ABC of special codes) on the Scantron sheet. Fill in the

More information

How does your eye form an Refraction

How does your eye form an Refraction Astronomical Instruments Eyes and Cameras: Everyday Light Sensors How does your eye form an image? How do we record images? How does your eye form an image? Refraction Refraction is the bending of light

More information

λ Fig. 2 Name: y direction. In what c) in the + y direction d) in the y direction e) in the x direction

λ Fig. 2 Name: y direction. In what c) in the + y direction d) in the y direction e) in the x direction Name: Exam #3 D#: Physics 140 Section #: hoose the best answer for each of Questions 1-19 below. Mark your answer on your scantron form using a # pencil. (5.6 pts each) 1. At a certain instant in time,

More information

General Physics II Summer Session 2013 Review Ch - 16, 17, 18

General Physics II Summer Session 2013 Review Ch - 16, 17, 18 95.104 General Physics II Summer Session 2013 Review Ch - 16, 17, 18 A metal ball hangs from the ceiling by an insulating thread. The ball is attracted to a positivecharged rod held near the ball. The

More information

Phys 100 Astronomy (Dr. Ilias Fernini) Review Questions for Chapter 5

Phys 100 Astronomy (Dr. Ilias Fernini) Review Questions for Chapter 5 Phys 100 Astronomy (Dr. Ilias Fernini) Review Questions for Chapter 5 MULTIPLE CHOICE 1. What is the wavelength of the longest wavelength light visible to the human eye? a. 400 nm b. 4000 nm c. 7000 nm

More information

a) the Moon is very large b) atmospheric conditions are just right c) the ocean is calm d) the ocean is wavy e) motion of the Moon

a) the Moon is very large b) atmospheric conditions are just right c) the ocean is calm d) the ocean is wavy e) motion of the Moon Question 26.1 When watching the Moon over the ocean, you often see a long streak of light on the surface of the water. This occurs because: Reflection a) the Moon is very large b) atmospheric conditions

More information

Moonbows. Friday somebody asked if rainbows can be seen at night.

Moonbows. Friday somebody asked if rainbows can be seen at night. Moonbows Friday somebody asked if rainbows can be seen at night. Neil Alberding (SFU Physics) Physics 121: Optics, Electricity & Magnetism Spring 2010 1 / 25 Moonbows Friday somebody asked if rainbows

More information

Name Final Exam May 1, 2017

Name Final Exam May 1, 2017 Name Final Exam May 1, 217 This test consists of five parts. Please note that in parts II through V, you can skip one question of those offered. Some possibly useful formulas appear below. Constants, etc.

More information

Exam 3--PHYS 202--S10

Exam 3--PHYS 202--S10 ame: Exam 3--PHYS 202--S0 Multiple Choice Identify the choice that best completes the statement or answers the question A person uses a convex lens that has a focal length of 25 cm to inspect a gem The

More information

Properties of Electromagnetic Radiation Chapter 5. What is light? What is a wave? Radiation carries information

Properties of Electromagnetic Radiation Chapter 5. What is light? What is a wave? Radiation carries information Concepts: Properties of Electromagnetic Radiation Chapter 5 Electromagnetic waves Types of spectra Temperature Blackbody radiation Dual nature of radiation Atomic structure Interaction of light and matter

More information

LIGHT. A beam is made up of several rays. It maybe parallel, diverging (spreading out) or converging (getting narrower). Parallel Diverging Converging

LIGHT. A beam is made up of several rays. It maybe parallel, diverging (spreading out) or converging (getting narrower). Parallel Diverging Converging LIGHT Light is a form of energy. It stimulates the retina of the eye and produces the sensation of sight. We see an object when light leaves it and enters the eye. Objects such as flames, the sum and stars

More information

PHYS 1112 In-Class Exam #1, Version D

PHYS 1112 In-Class Exam #1, Version D PHYS 1112 In-Class Exam #1, Version D Tue. Feb. 4, 2014, 11:00am-12:15am This is a closed-book, closed-notes exam, but you are permitted to bring and use a clean copy of the official Formula Sheet for

More information

Light. Mike Maloney Physics, SHS

Light. Mike Maloney Physics, SHS Light Mike Maloney Physics, SHS 1 Light What is LIGHT? WHERE DOES IT COME FROM? 2003 Mike Maloney 2 What is Light? Light is a wave, or rather acts like a wave. How do we know since we cannot see it? We

More information

3/9/2011. Outline Chapter 7 Waves Water Waves Water Waves. Water waves are really circular. They are an example of Mechanical waves.

3/9/2011. Outline Chapter 7 Waves Water Waves Water Waves. Water waves are really circular. They are an example of Mechanical waves. Outline Chapter 7 Waves 7-1. Water Waves 7-2. Transverse and Longitudinal Waves 7-3. Describing Waves 7-4. Standing Waves 7-5. Sound 7-6. Doppler Effect 7-7. Musical Sounds 7-8. Electromagnetic Waves 7-9.

More information

Physics 1252 Sec.A Exam #1A

Physics 1252 Sec.A Exam #1A Physics 1252 Sec.A Exam #1A Instructions: This is a closed-book, closed-notes exam. You are allowed to use a clean print-out of your formula sheet, any scientific calculator, and a ruler. Do not write

More information

Astronomy. Optics and Telescopes

Astronomy. Optics and Telescopes Astronomy A. Dayle Hancock adhancock@wm.edu Small 239 Office hours: MTWR 10-11am Optics and Telescopes - Refraction, lenses and refracting telescopes - Mirrors and reflecting telescopes - Diffraction limit,

More information

Exam 3--PHYS 102--S17

Exam 3--PHYS 102--S17 Name: Exam 3--PHYS 102--S17 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of these is constant for appliances in your home? I. Voltage II. Current

More information

DISPERSION VERY SHORT ANSWER QUESTIONS. Two identical prisms made of the same material placed with their based on opposite sides (of the

DISPERSION VERY SHORT ANSWER QUESTIONS. Two identical prisms made of the same material placed with their based on opposite sides (of the DISPERSION VERY SHORT ANSWER QUESTIONS Q-1. What will be the spectrum of sun during a total solar eclipse? Q-2. Why the secondary rainbow is always fainter than the primary rainbow? Q-3. Two identical

More information

A system of two lenses is achromatic when the separation between them is

A system of two lenses is achromatic when the separation between them is L e c t u r e 1 5 1 Eyepieces Single eye lens in a telescope / microscope produces spherical and chromatic aberrations. The field of view is also narrow. The eye lens is replaced by a system of lenses

More information

Quest Chapter 29. turned back think bounce. Reread the definition of the law of reflection on page 444.

Quest Chapter 29. turned back think bounce. Reread the definition of the law of reflection on page 444. 1 A wave is turned back when it meets the boundary of the medium in which it is traveling. The wave is said to have undergone 1. interference. 2. diffraction. 3. reflection. 4. refraction. 2 What is the

More information

Light is an electromagnetic wave (EM)

Light is an electromagnetic wave (EM) What is light? Light is a form of energy. Light travels in a straight line Light speed is 3.0 x 10 8 m/s Light is carried by photons Light can travel through a vacuum Light is a transverse wave Light is

More information

Since focal length = focal power

Since focal length = focal power RAY OPTICS PREVIOUS EAMCET BITS (ENGINEERING ). The two lenses of an achromatic doublet should have : [EAMCET 009 E] ) equal powers ) equal dispersive powers ) equal ratio of their power and dispersive

More information

Experiment #4 Nature of Light: Telescope and Microscope and Spectroscope

Experiment #4 Nature of Light: Telescope and Microscope and Spectroscope Experiment #4 Nature of Light: Telescope and Microscope and Spectroscope In this experiment, we are going to learn the basic principles of the telescope and the microscope that make it possible for us

More information

Sound and Light. Light

Sound and Light. Light Sound and Light Light What do you think? Read the two statements below and decide whether you agree or disagree with them. Place an A in the Before column if you agree with the statement or a D if you

More information

Discussion Review Test #2. Units 12-19: (1) (2) (3) (4) (5) (6)

Discussion Review Test #2. Units 12-19: (1) (2) (3) (4) (5) (6) Discussion Review Test #2 Units 12-19: (1) (2) (3) (4) (5) (6) (7) (8) (9) Galileo used his observations of the changing phases of Venus to demonstrate that a. the sun moves around the Earth b. the universe

More information

Unit 3: Optics Chapter 4. Properties of Light

Unit 3: Optics Chapter 4. Properties of Light Unit 3: Optics Chapter 4 Properties of Light There are many types of light sources... Fluorescence Incandescence Electric Bioluminescence Chemiluminescence Combustion The Nature of Light Pythagoras A Greek

More information

PHYS 102 Exams. PHYS 102 Exam 3 PRINT (A)

PHYS 102 Exams. PHYS 102 Exam 3 PRINT (A) PHYS 102 Exams PHYS 102 Exam 3 PRINT (A) The next two questions pertain to the situation described below. A metal ring, in the page, is in a region of uniform magnetic field pointing out of the page as

More information

Wave - Particle Duality of Light

Wave - Particle Duality of Light Properties of Light Objectives Explain wave-particle duality State the speed of light Describe electromagnetic waves and the electromagnetic spectrum Explain how light interacts with transparent and opaque

More information

Fluorescence. Incandescence. Electric. Bioluminescence Chemiluminescence. Combustion

Fluorescence. Incandescence. Electric. Bioluminescence Chemiluminescence. Combustion Fluorescence Incandescence Electric Bioluminescence Chemiluminescence Combustion Pythagoras A Greek philosopher Believed light was beams of tiny particles The eyes could detect these particles and see

More information

Physics 1302, Exam 3 Review

Physics 1302, Exam 3 Review c V Andersen, 2006 1 Physics 1302, Exam 3 Review The following is a list of things you should definitely know for the exam, however, the list is not exhaustive. You are responsible for all the material

More information

AP Waves/Optics ~ Learning Guide

AP Waves/Optics ~ Learning Guide AP Waves/Optics ~ Learning Guide Name: Instructions: Using a pencil, answer the following questions. The guide is marked based on effort, completeness, thoughtfulness, and neatness (not accuracy). Do your

More information

PAP Physics Spring Exam Review

PAP Physics Spring Exam Review Class: Date: PAP Physics Spring Exam Review Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.. A container of gas is at a pressure of.3 0 5 Pa

More information

HUMAN EYE AND THE COLOURFUL WORLD

HUMAN EYE AND THE COLOURFUL WORLD HUMAN EYE AND THE COLOURFUL WORLD Class: 10 (Boys) Sub: PHYSICS NOTES The Human Eye: The human eye is a sensitive sense organ and acts like a camera, which enable us to capture the colourful picture of

More information

Introduction to Properties of Waves

Introduction to Properties of Waves Introduction to Properties of Waves Waves travel through materials as vibrations and transmit energy. Though nearly all waves travel through matter, they never transmit matter. Waves are created when a

More information

Gen. Phys. II Exam 3 - Chs. 24,25,26 - EM Waves, Ray Optics, Optical Instruments Mar. 26, 2018

Gen. Phys. II Exam 3 - Chs. 24,25,26 - EM Waves, Ray Optics, Optical Instruments Mar. 26, 2018 Gen. Phys. II Exam 3 - Chs. 24,25,26 - EM Waves, Ray Optics, Optical Instruments Mar. 26, 2018 Rec. Time Name For full credit, make your work clear. Show formulas used, essential steps, and results with

More information

Coursework Booklet 2

Coursework Booklet 2 Level 3 Applied Science UNIT 16: Astronomy and Space Science PHYSICS SECTION Coursework Booklet 2 1 P a g e Astronomy and space science Learning aim B Undertake measurement and observation of astronomical

More information

Physics 11 Exam 3 Spring 2016

Physics 11 Exam 3 Spring 2016 Physics 11 Exam 3 Spring 2016 Name: Circle the BEST Answer 1 Electromagnetic waves consist of A) compressions and rarefactions of electromagnetic pulses. B) oscillating electric and magnetic fields. C)

More information

Doppler Shifts. Doppler Shift Lecture-Tutorial: Pgs Temperature or Heat? What can we learn from light? Temp: Peak in Thermal Radiation

Doppler Shifts. Doppler Shift Lecture-Tutorial: Pgs Temperature or Heat? What can we learn from light? Temp: Peak in Thermal Radiation Doppler Shift Lecture-Tutorial: Pgs. 75-80 Work with a partner or two Read directions and answer all questions carefully. Take time to understand it now! Come to a consensus answer you all agree on before

More information

PhysicsAndMathsTutor.com 1

PhysicsAndMathsTutor.com 1 PhysicsAndMathsTutor.com 1 1. The diagram shows the concave mirror of a Cassegrain reflecting telescope, together with the eyepiece lens. Complete the diagram of the telescope and mark on it the focal

More information

Chapter 33: ELECTROMAGNETIC WAVES 559

Chapter 33: ELECTROMAGNETIC WAVES 559 Chapter 33: ELECTROMAGNETIC WAVES 1 Select the correct statement: A ultraviolet light has a longer wavelength than infrared B blue light has a higher frequency than x rays C radio waves have higher frequency

More information

Concave mirrors. Which of the following ray tracings is correct? A: only 1 B: only 2 C: only 3 D: all E: 2& 3

Concave mirrors. Which of the following ray tracings is correct? A: only 1 B: only 2 C: only 3 D: all E: 2& 3 Concave mirrors Which of the following ray tracings is correct? A: only 1 B: only 2 C: only 3 D: all E: 2& 3 1 2 3 c F Point C: geometrical center of the mirror, F: focal point 2 Concave mirrors Which

More information

Physics 319 Laboratory: Basics of telescopes and Microscopes (Magnification Experiment) and transverse magnification, M t

Physics 319 Laboratory: Basics of telescopes and Microscopes (Magnification Experiment) and transverse magnification, M t Objective: In general you will explore the basic principles of how simple telescopes and microscope work. Specifically, you will examine the fundamental principles of magnification of a single thin lens

More information

Magnifying Glass. Angular magnification (m): 25 cm/f < m < 25cm/f + 1. image at 25 cm (= normal near point) relaxed eye, image at (normal) far point

Magnifying Glass. Angular magnification (m): 25 cm/f < m < 25cm/f + 1. image at 25 cm (= normal near point) relaxed eye, image at (normal) far point Magnifying Glass Angular magnification (m): 25 cm/f < m < 25cm/f + 1 relaxed eye, image at (normal) far point image at 25 cm (= normal near point) For more magnification, first use a lens to form an enlarged

More information

Solution 3: A glass prism deviates the violet light most and the red light least.

Solution 3: A glass prism deviates the violet light most and the red light least. EXERCISE- 6 (A) Question 1: Name three factors on which the deviation produces by a prism depends and state how does it depend on the factors stated by you. Solution 1: The deviation produced by the prism

More information

Exam 4--PHYS 151--Spring 2017

Exam 4--PHYS 151--Spring 2017 Name: Exam 4--PHYS 151--Spring 2017 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Electromagnetic radiation is caused by a. electricity b. radioactive

More information

Electromagnetic spectra

Electromagnetic spectra Properties of Light Waves, particles and EM spectrum Interaction with matter Absorption Reflection, refraction and scattering Polarization and diffraction Reading foci: pp 175-185, 191-199 not responsible

More information

Lecture 2: Basic Astronomical Optics. Prisms, Lenses, and Mirrors

Lecture 2: Basic Astronomical Optics. Prisms, Lenses, and Mirrors Lecture 2: Basic Astronomical Optics Prisms, Lenses, and Mirrors Basic Optical Elements Refraction (Lenses) No longer used for large telescopes Widely used for instrument optics Reflection (mirrors) Widely

More information

Newton s Laws of Motion

Newton s Laws of Motion Newton s Laws of Motion #1: A body continues at rest or in uniform motion in a straight line unless acted upon by a force. Why doesn t the soccer ball move on its own? What causes a soccer ball to roll

More information

Pre-Lab Reading Questions GS106 Lab 3 Answer Key - How We Use Light in Astronomy Life Cycle of a Wave: 1) initialized as oscillating vibrations ("disturbances"), 2) wave travel from origin to destination,

More information

A) n L < 1.0 B) n L > 1.1 C) n L > 1.3 D) n L < 1.1 E) n L < 1.3

A) n L < 1.0 B) n L > 1.1 C) n L > 1.3 D) n L < 1.1 E) n L < 1.3 1. A beam of light passes from air into water. Which is necessarily true? A) The frequency is unchanged and the wavelength increases. B) The frequency is unchanged and the wavelength decreases. C) The

More information

Physics 6C. Final Practice Solutions. Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

Physics 6C. Final Practice Solutions. Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB Physics 6C Final Practice Solutions Use the following information for problems 1 and. A beam of white light with frequency between 4.00 x 10 14 Hz and 7.90 x 10 14 Hz is incident on a sodium surface, which

More information

AST 102 chapter 5. Radiation and Spectra. Radiation and Spectra. Radiation and Spectra. What is light? What is radiation?

AST 102 chapter 5. Radiation and Spectra. Radiation and Spectra. Radiation and Spectra. What is light? What is radiation? 5 Radiation and Spectra 1 Radiation and Spectra What is light? According to Webster: a.something that makes vision possible b.the sensation aroused by stimulation of the visual receptors c.electromagnetic

More information

Test 4 Preparation Questions

Test 4 Preparation Questions Test 4 Preparation Questions A1. One joule of work is required to move a one-coulomb point charge from point A to point B in a uniform electric field. This indicates that (A) the resistance between points

More information

Chapter 5 Light: The Cosmic Messenger. Copyright 2012 Pearson Education, Inc.

Chapter 5 Light: The Cosmic Messenger. Copyright 2012 Pearson Education, Inc. Chapter 5 Light: The Cosmic Messenger 5.1 Basic Properties of Light and Matter Our goals for learning: What is light? What is matter? How do light and matter interact? What is light? Light is an electromagnetic

More information

Cp physics - Spring Final Review (second semester topics)

Cp physics - Spring Final Review (second semester topics) Name: Class: _ Date: _ Cp physics - Spring Final Review (second semester topics) Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following

More information

Name Date Class. Electromagnetic Spectrum. Colors

Name Date Class. Electromagnetic Spectrum. Colors b e n c h m a r k t e s t : p h y s i c a l s c i e n c e Multiple Choice Directions: Use the diagram below to answer question 1. Electromagnetic Spectrum Radio waves A B C D Gamma rays Long Wavelength

More information

Waves. Electromagnetic. No medium required. Can travel in a vacuum (empty space).

Waves. Electromagnetic. No medium required. Can travel in a vacuum (empty space). Electromagnetic Waves Made up of vibrating electric and magnetic fields. Carry energy. Move in the form of both a wave and a particle. No medium required. Can travel in a vacuum (empty space). Demonstrate

More information

FACULTY OF SCIENCE DEPARTMENT OF APPLIED PHYSICS AND ENGINEERING MATHEMATICS DATE: 3/12/2015 SESSION 11:30 14:30 DURATION: 3 HOURS MARKS: 110

FACULTY OF SCIENCE DEPARTMENT OF APPLIED PHYSICS AND ENGINEERING MATHEMATICS DATE: 3/12/2015 SESSION 11:30 14:30 DURATION: 3 HOURS MARKS: 110 FACULTY OF SCIENCE DEPARTMENT OF APPLIED PHYSICS AND ENGINEERING MATHEMATICS MODULE CAMPUS PHY1DB1 DFC EXAM DECEMBER 2015 DATE: 3/12/2015 SESSION 11:30 14:30 ASSESSOR(S) INTERNAL MODERATOR DR S.M. RAMAILA

More information

Wave Motion and Sound

Wave Motion and Sound Wave Motion and Sound 1. A back and forth motion that repeats itself is a a. Spring b. Vibration c. Wave d. Pulse 2. The number of vibrations that occur in 1 second is called a. A Period b. Frequency c.

More information

ABOUT SPOTTINGSCOPES Background on Telescopes

ABOUT SPOTTINGSCOPES Background on Telescopes 22 November 2010 ABOUT SPOTTINGSCOPES A spotting scope is a compact telescope designed primarily for terrestrial observing and is used in applications which require magnifications beyond the range of a

More information

The Electromagnetic Spectrum

The Electromagnetic Spectrum Physics 25 Chapter 24 Dr. Alward Electromagnetic Waves Electromagnetic (EM) waves consist of traveling electric and magnetic disturbances. One source of electromagnetic waves are electric charges oscillating

More information

PHYSICS PRACTICAL (CBSE) - X

PHYSICS PRACTICAL (CBSE) - X PHYSICS PRACTICAL (CBSE) - X Scientific Terminology / Definitions Absolute refractive index (m) : It is the refractive index of the medium with respect to air or vacuum. Amplitude (A) : It is the maximum

More information

5.3. Physics and the Quantum Mechanical Model

5.3. Physics and the Quantum Mechanical Model Chemistry 5-3 Physics and the Quantum Mechanical Model Neon advertising signs are formed from glass tubes bent in various shapes. An electric current passing through the gas in each glass tube makes the

More information

Physics 102: Lecture 16 Introduction to Mirrors

Physics 102: Lecture 16 Introduction to Mirrors Physics 102: Lecture 16 Introduction to Mirrors Physics 102: Lecture 16, Slide 1 Physics 102 recent lectures Light as a wave Lecture 14 EM waves Lecture 15 Polarization Lecture 20 & 21 Interference & diffraction

More information

Engineering Physics 1 Prof. G.D. Vermaa Department of Physics Indian Institute of Technology-Roorkee

Engineering Physics 1 Prof. G.D. Vermaa Department of Physics Indian Institute of Technology-Roorkee Engineering Physics 1 Prof. G.D. Vermaa Department of Physics Indian Institute of Technology-Roorkee Module-04 Lecture-02 Diffraction Part - 02 In the previous lecture I discussed single slit and double

More information

The Nature of Light I: Electromagnetic Waves Spectra Kirchoff s Laws Temperature Blackbody radiation

The Nature of Light I: Electromagnetic Waves Spectra Kirchoff s Laws Temperature Blackbody radiation The Nature of Light I: Electromagnetic Waves Spectra Kirchoff s Laws Temperature Blackbody radiation Electromagnetic Radiation (How we get most of our information about the cosmos) Examples of electromagnetic

More information

How does your eye form an Refraction

How does your eye form an Refraction Astronomical Instruments and : Everyday Light Sensors How does your eye form an image? How do we record images? How does your eye form an image? Refraction Refraction is the of light Eye uses refraction

More information

Revision checklist SP4 5. SP4 Waves. SP4a Describing waves. SP4b Wave speeds. SP4c Refraction

Revision checklist SP4 5. SP4 Waves. SP4a Describing waves. SP4b Wave speeds. SP4c Refraction SP4 Waves SP4a Describing waves Recall that waves transfer energy and information but do not transfer matter. Describe waves using the terms frequency, wavelength, amplitude, period and velocity. Describe

More information

Fluids density Pascal s principle (pressure vs. depth) Equation of continuity Buoyant force Bernoulli s (pressure, velocity, depth)

Fluids density Pascal s principle (pressure vs. depth) Equation of continuity Buoyant force Bernoulli s (pressure, velocity, depth) Final Exam All Finals week in the testing center. 50 multiple choice questions. Equations on the back of the test. Calculators are allowed on the test. There is a practice test in the packet. Exam 1 Review

More information

LC circuit: Energy stored. This lecture reviews some but not all of the material that will be on the final exam that covers in Chapters

LC circuit: Energy stored. This lecture reviews some but not all of the material that will be on the final exam that covers in Chapters Disclaimer: Chapter 29 Alternating-Current Circuits (1) This lecture reviews some but not all of the material that will be on the final exam that covers in Chapters 29-33. LC circuit: Energy stored LC

More information

PHY2054 Summer 2017 Final ExamVersion 2

PHY2054 Summer 2017 Final ExamVersion 2 PHY2054 Summer 2017 Final ExamVersion 2 MULTIPLE CHOICE. Please answer all questions by choosing the one alternative that best completes the statement or answers the question. 1) When two or more capacitors

More information

PHY2054 Summer 2017 Final ExamVersion 1

PHY2054 Summer 2017 Final ExamVersion 1 PHY2054 Summer 2017 Final ExamVersion 1 MULTIPLE CHOICE. Please answer all questions by choosing the one alternative that best completes the statement or answers the question. 1) In the figure below, a

More information

Chapter 6 Lecture. The Cosmic Perspective. Telescopes Portals of Discovery Pearson Education, Inc.

Chapter 6 Lecture. The Cosmic Perspective. Telescopes Portals of Discovery Pearson Education, Inc. Chapter 6 Lecture The Cosmic Perspective Telescopes Portals of Discovery 2014 Pearson Education, Inc. Telescopes Portals of Discovery CofC Observatory 6.1 Eyes and Cameras: Everyday Light Sensors Our goals

More information

Astronomy 1 Fall 2016

Astronomy 1 Fall 2016 Astronomy 1 Fall 2016 One person s perspective: Three great events stand at the threshold of the modern age and determine its character: 1) the discovery of America; 2) the Reformation; 3) the invention

More information

Prentice Hall EARTH SCIENCE

Prentice Hall EARTH SCIENCE Prentice Hall EARTH SCIENCE Tarbuck Lutgens Chapter 24 Studying the Sun 24.1 The Study of Light Electromagnetic Radiation Electromagnetic radiation includes gamma rays, X-rays, ultraviolet light, visible

More information

Chapter 6 Lecture. The Cosmic Perspective Seventh Edition. Telescopes Portals of Discovery Pearson Education, Inc.

Chapter 6 Lecture. The Cosmic Perspective Seventh Edition. Telescopes Portals of Discovery Pearson Education, Inc. Chapter 6 Lecture The Cosmic Perspective Seventh Edition Telescopes Portals of Discovery Telescopes Portals of Discovery 6.1 Eyes and Cameras: Everyday Light Sensors Our goals for learning: How do eyes

More information

The Final Exam (Exam 4) will be on FRIDAY MAY 11 From 3 5 PM in LR1 VAN

The Final Exam (Exam 4) will be on FRIDAY MAY 11 From 3 5 PM in LR1 VAN 1 --------------------------------------------------------------------------------------------------------------------- 29:006 SPRING 2012 PRACTICE EXAM 4 ---------------------------------------------------------------------------------------------------------------------

More information

General Physics II PHYS 102 Final Exam Spring st May 2011

General Physics II PHYS 102 Final Exam Spring st May 2011 Qatar University Arts and Sciences College Mathematics and Physics Department General Physics II PHYS 102 Final Exam Spring 2011 31 st May 2011 Student Name: ID Number: 60 Please read the following carefully

More information