f= = s = Hz m Thus (B) is the correct answer.
|
|
- Byron Griffith
- 5 years ago
- Views:
Transcription
1 MCAT Physics Problem Solving Drill 17: Electromagnetic Radiation Question No. 1 of 10 Question 1. Violet light has a wavelength of 700 nm. What is the frequency of this radiation? Question #01 (A) Hz (B) Hz (C) Hz (D) None of the above Frequency is the speed of light divided by the wavelength, not the wavelength divided by the frequency. B. Correct! Frequency is the speed of light divided by the wavelength. The question asked for the frequency, not the angular frequency. One of the above choices is correct. Use the formula that relates the speed of light, c, the frequency, f, and the wavelength, λ. c=fλ Solve the preceding equation for f. c f= λ Finally, substitute numerical values m/s f= = s = Hz m Thus (B) is the correct answer.
2 Question No. 2 of 10 Question 2. One radio wave has a frequency twice as large as another radio wave. What is the ratio of the wavelength of the first radio wave to the wavelength of the second radio wave? Question #02 (A) 1:4 (B) 1:2 (C) 1:1 (D) 2:1 Although the first radio wave will have a smaller frequency, this is not the correct proportion. B. Correct! The ratio of wavelengths will be the inverse of the ratio of frequencies. See the solution below. The ratio of wavelengths depends upon the ratio of frequencies, which is not 1:1. Although this is the ratio of frequencies, the ratio of wavelengths is the inverse of this proportion. The speed of light is constant for both radio waves: c=f λ =f λ We are interested in the ratio λ 1 /λ 2, which can be expressed in terms of the frequencies: λ λ f = f Since we know the following: f 1 =2, f 2 the ratio λ 1 /λ 2 can be found: λ1 1 = λ 2. 2 Thus the correct answer is (B).
3 Question No. 3 of 10 Question 3. Though 700 nm light is in the visible region of the electromagnetic spectrum, it is very near. Question #03 (A) the radio wave region (B) the microwave region (C) the infrared region (D) the ultraviolet region Use the formula to find the B field at a distance from a current carrying wire. The magnetic field equal the permittivity of free space times the current divided by 2 pie times the distance away from the wire. B. Incorrect. Although microwaves have a longer wavelength than visible light spectrum, adjacent to red color region is the infrared region. C. Correct! A wavelength of 700 nm corresponds to the red region of the visible spectrum. This is closest to the infrared region. The ultraviolet region is closest to the low-wavelength end of the visible spectrum, ~ 400 nm. A wavelength of 700 nm corresponds to the red region of the visible spectrum. This is closest to the infrared region. On the other hand, wavelengths close to 400 nm correspond to violet light, which is closest to UV region. Microwaves have wavelengths even larger then infrared.
4 Question No. 4 of 10 Question #04 Question 4. Redshift is a phenomenon in which light from an object is shifted towards the red end of the spectrum: when an object is receding from the observer, the wavelength observed from the source is observed to increase. Which of the following phenomena is responsible for the redshift of electromagnetic radiation? (A) Doppler effect (B) ionization (C) reflection (D) refraction A. Correct! Redshift is the Doppler effect applied to electromagnetic radiation. B. Incorrect. Ionization is a process in which an electron is taken away from an atom due to electromagnetic radiation being imparted upon the atom. This has no relation to the wavelength of a source changing. Although reflection is a wave phenomenon, generally the wavelength of light is not affected upon reflection. Although wavelength may change upon refraction, which is a wave phenomenon, this depends upon the index of refraction of the material in between the source and the observer. Electromagnetic radiation is a wave phenomenon. Thus the Doppler effect, which is a wave phenomenon encountered when studying sound, can be applied to light. According to the Doppler effect, when an object receding from the observer, the frequency will be lower. Equivalently, when an object is receding from the observer, the wavelength will be higher, or shifted towards the red end of the spectrum. Although the equations describing the Doppler effect for sound and light are different (in the case of light, beyond the scope of MCAT physics!), they are conceptually similar.
5 Question No. 5 of 10 Question 5. Which of the following types of electromagnetic radiation has the largest speed? (A) radio waves (B) ultraviolet waves (C) X rays (D) they are all equal Question #05 Although radio waves have a relatively large wavelength, and a small frequency they are not necessarily the fastest. B. Incorrect. Ultraviolet waves have a higher frequency than visible light. However, they are not necessarily the fastest wave listed. C. Incorrect! Alhtough X rays have the largest frequency listed, they are not necessarily the fastest wave. D. Correct. They all travel at the same speed in any particular medium. They may have different wavelengths and frequencies, but they have the same speed. They all travel at the same speed in any particular medium. They may have different wavelengths and frequencies, but they have the same speed. This is an important characteristic of all electromagnetic radiation.
6 Question No. 6 of 10 Question 6. The wavenumber, k,, is given in terms of the wavelength, λ, as k,= 2π/λ. Also, the angular frequency ω, can be equal to 2π f. What is the speed of a light wave in terms of k and its angular frequency ω? Question #06 (A) ωk (B) ω/k (C) k/ω (D) 2πω/k This quantity would be equal to 4π 2 f/λ, which is not correct and not even in the correct units for speed. B. Correct! This combination is the only answer choice provided that equals fλ for a light wave. This is the inverse of the relation desired. Although this is in the units of speed, this has an unwanted additional factor of 2π. The wave number, k, is defined in terms of the wavelength, λ, as: k=2π/λ. Recall that the angular frequency, ω, is given in terms of f as: ω=2πf. Since we know: λf=c, write the wavelength in terms of the wave number, and the frequency in terms of the angular frequency to obtain: 2π ω =c k 2π. The above expression simplifies (cancel out factors of 2π), so finally obtain: ω =c k. Thus answer (B) is the correct answer choice.
7 Question No. 7 of 10 Question 7. Glass is opaque to what type of electromagnetic radiation? Question #07 (A) Ultraviolet (B) Infrared (C) Visible light (D) Both ultraviolet and infrared A. Incorrect! Although glass is opaque to ultraviolet, that is true of another type too. B. Incorrect. Although glass is opaque to infrared, that is true for another type of electromagnetic radiation too. Glass is transparent for visible light. D. Correct. Both of those types don t get transmitted through glass. This is one of the causes for the greenhouse effect. Visible light is transmitted through glass. This heats the interior. The heated materials emit infrared light which is trapped inside since glass is opaque to infrared light. Ultraviolet too is mostly stopped by glass.
8 Question No. 8 of 10 Question #08 Question 8. Based on the validity of the following statements: I. Electric and magnetic fields are perpendicular in an electromagnetic wave II. Electromagnetic waves are transverse waves III. Electromagnetic waves require a medium to propagate which of the following answer choices is correct? (A) I only (B) II only (C) I and II (D) II and III Although statement I is true, statement II is also true. B. Incorrect. Although statement II is true, statement I is also true. C. Correct! This is the correct answer choice, since statements I and II are correct, and statement III is false. See the solution below. Statement III is false, because electromagnetic waves can travel in vacuum (no medium). Statement I is correct, since electric and magnetic fields travel perpendicular to each other while oscillating. Statement II is also true, since the oscillations occur perpendicular to direction of propagation.
9 Question No. 9 of 10 Question 9. Consider the following types of electromagnetic radiation: Radio, infrared, X rays Which of those has the highest frequency? Question #09 (A) Radio waves (B) Infrared waves (C) X rays (D) They all have the same frequency Radio waves have one of the lowest frequencies. They also have a very large wavelength. Some radio waves can be the size of a house! B. Incorrect! Infrared waves have a relatively low frequency. In terms of frequency, they are just below the visible light we observe with our eyes. C. Correct! X rays are very energetic. They also have a very high frequency and carry a lot of energy. The electromagnetic spectrum is made up of a wide variety of different frequency radiations. Of the types listed, X rays have the highest frequency. This also means they have the smallest wavelength. All of the types listed have the same speed. Radio waves Infrared Ultraviolet Gamma rays Micro waves Visible light X rays
10 Question No. 10 of 10 Question 10. If a laser beam is sent to a reflecting surface on the moon and it returns in 2.5 seconds, how far away is the moon at that point in time? Question #10 (A) 3x10^8 m (B) 1.25 m (C) 7.510^8 m (D) ^8 m This may be the value for the speed of light in a vacuum, but it isn t the distance to the moon. B. Incorrect! This would be a ridiculously small value for the distance to the moon. Although this distance is in the correct ballpark, it isn t the actual distance to the moon in this problem. This distance is the distance to the moon and back. D. Correct. With the information given in the problem, this represents the distance to the moon. The 2.5 seconds given represents the time for the laser beam to go to the moon, reflect, and return to earth. Half of this time is the one way trip, 1.25 seconds. Use the known speed of light, 3.0x10^8 m/s and determine the unknown distance. d v= t 8 8 d=t x v=(1.25s)(3.0x10 m/s)=3.75x10 m
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 informationElectromagnetic Radiation
Electromagnetic Radiation aka Light Properties of Light are simultaneously wave-like AND particle-like Sometimes it behaves like ripples on a pond (waves). Sometimes it behaves like billiard balls (particles).
More informationLight 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 informationELECTROMAGNETIC WAVES
UNIT V ELECTROMAGNETIC WAVES Weightage Marks : 03 Displacement current, electromagnetic waves and their characteristics (qualitative ideas only). Transverse nature of electromagnetic waves. Electromagnetic
More informationChapter 25. Electromagnetic Waves
Chapter 25 Electromagnetic Waves EXAM # 3 Nov. 20-21 Chapter 23 Chapter 25 Powerpoint Nov. 4 Problems from previous exams Physics in Perspective (pg. 836 837) Units of Chapter 25 The Production of Electromagnetic
More informationPhysics 201. Professor P. Q. Hung. 311B, Physics Building. Physics 201 p. 1/3
Physics 201 p. 1/3 Physics 201 Professor P. Q. Hung 311B, Physics Building Physics 201 p. 2/3 What are electromagnetic waves? Electromagnetic waves consist of electric fields and magnetic fields which
More informationChapter 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 informationElectromagnetic 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 informationProperties 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 informationChapter 26. Properties of Light
Chapter 26 Properties of Light James Clerk Maxwell discovered that light is composed of a. electromagnetic waves. b. ultrasonic waves. c. infrasonic waves. d. electron vibrations. James Clerk Maxwell discovered
More informationMCQs E M WAVES. Physics Without Fear.
MCQs E M WAVES Physics Without Fear Electromagnetic Waves At A Glance Ampere s law B. dl = μ 0 I relates magnetic fields due to current sources. Maxwell argued that this law is incomplete as it does not
More informationElectromagnetic Waves Properties. The electric and the magnetic field, associated with an electromagnetic wave, propagating along the z=axis. Can be represented by E = E kˆ, = iˆ E = E ˆj, = ˆj b) E =
More informationSound Waves. Sound waves are caused by vibrations and carry energy through a medium
Chapter 16 Sound Waves Sound waves are caused by vibrations and carry energy through a medium An example of a compressional wave Waves can spread out in all directions Their speed depends on its medium
More informationChapter 34. Electromagnetic Waves
Chapter 34 Electromagnetic Waves Waves If we wish to talk about electromagnetism or light we must first understand wave motion. If you drop a rock into the water small ripples are seen on the surface of
More informationSECTION 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 informationin Electromagnetics Numerical Method Introduction to Electromagnetics I Lecturer: Charusluk Viphavakit, PhD
2141418 Numerical Method in Electromagnetics Introduction to Electromagnetics I Lecturer: Charusluk Viphavakit, PhD ISE, Chulalongkorn University, 2 nd /2018 Email: charusluk.v@chula.ac.th Website: Light
More informationSPECTRUM. 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 informationWave Properties of Light Karolina H. Czarnecka, PhD Department of Molecular Bases of Medicine
Wave Properties of Light Karolina H. Czarnecka, PhD Department of Molecular Bases of Medicine karolina.czarnecka@umed.lodz.pl THE ELECTROMAGNETIC FORCE One of the four fundamental forces, the electromagnetic
More informationPhysics 30: Chapter 5 Exam Wave Nature of Light
Physics 30: Chapter 5 Exam Wave Nature of Light Name: Date: Mark: /33 Numeric Response. Place your answers to the numeric response questions, with units, in the blanks at the side of the page. (1 mark
More informationFigure 1 shows white light passing through a triangular glass prism. The white light splits up into different colours. Two of the colours are shown.
Name Q9.Visible white light consists of several different colours. Figure 1 shows white light passing through a triangular glass prism. The white light splits up into different colours. Two of the colours
More informationLight. 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 informationThe Electromagnetic Spectrum
The Electromagnetic Spectrum 1 of 19 Boardworks Ltd 2016 The Electromagnetic Spectrum 2 of 19 Boardworks Ltd 2016 Detecting waves beyond the visible spectrum 3 of 19 Boardworks Ltd 2016 Invisible light
More informationLight: Transverse WAVE
Light Longitudinal WAVES Light: Transverse WAVE Light: Particle or wave Photon The Wave Nature of Light 1. Unlike other branches of science, astronomers cannot touch or do field work on their samples.
More information2) The number of cycles that pass through a stationary point is called A) wavelength. B) amplitude. C) frequency. D) area. E) median.
Chemistry Structure and Properties 2nd Edition Tro Test Bank Full Download: http://testbanklive.com/download/chemistry-structure-and-properties-2nd-edition-tro-test-bank/ Chemistry: Structure & Properties,
More informationHow do we get information about heavenly bodies when they are so far??
In Astronomy the most common unit to measure distances is---- Light Year: It is the distance traveled by light in one year. Speed of light ~ 300,000 kilometers/sec So in one hour lights travels = 300,000
More informationSound 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 informationHmm What type of wave is a radio wave? Is that type in the answers? Let s see We have distance We want time
Quest Chapter 27 # Question Hints 1 At what speed does the radio wave travel? 1. slower than the sound 2. More information is needed. 3. at the speed of sound 4. faster than visible light 5. at a speed
More informationThe Sine Wave. You commonly see waves in the environment. Light Sound Electricity Ocean waves
The Sine Wave Mathematically, a function that represents a smooth oscillation For example, if we drew the motion of how the weight bobs on the spring to the weight we would draw out a sine wave. The Sine
More informationFrequency: the number of complete waves that pass a point in a given time. It has the symbol f. 1) SI Units: Hertz (Hz) Wavelength: The length from
Frequency: the number of complete waves that pass a point in a given time. It has the symbol f. 1) SI Units: Hertz (Hz) Wavelength: The length from the one crest of a wave to the next. I. Electromagnetic
More informationASTRONOMY 161. Introduction to Solar System Astronomy. Class 9
ASTRONOMY 161 Introduction to Solar System Astronomy Class 9 Light Monday, January 29 Look, but don t touch. - Astronomers Motto Light: Key Concepts (1) Visible light is just one form of electromagnetic
More informationASTR-1010: Astronomy I Course Notes Section IV
ASTR-1010: Astronomy I Course Notes Section IV Dr. Donald G. Luttermoser Department of Physics and Astronomy East Tennessee State University Edition 2.0 Abstract These class notes are designed for use
More informationName Class Date. What two models do scientists use to describe light? What is the electromagnetic spectrum? How can electromagnetic waves be used?
CHAPTER 16 12 SECTION Sound and Light The Nature of Light KEY IDEAS As you read this section, keep these questions in mind: What two models do scientists use to describe light? What is the electromagnetic
More informationRevision 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 informationChapter 29: Maxwell s Equation and EM Waves. Slide 29-1
Chapter 29: Maxwell s Equation and EM Waves Slide 29-1 Equations of electromagnetism: a review We ve now seen the four fundamental equations of electromagnetism, here listed together for the first time.
More informationGrade 8 Science: Unit 3-Optics Chapter 4: Properties of Light
Grade 8 Science: Unit 3-Optics Chapter 4: Properties of Light Key Terms: Microscope, telescope, amplitude, crest, energy, force, frequency, hertz, medium, transverse wave, trough, wave, wavelength, reflection,
More informationElectromagnetic Waves
Chapter 32 Electromagnetic Waves PowerPoint Lectures for University Physics, Thirteenth Edition Hugh D. Young and Roger A. Freedman Lectures by Wayne Anderson Goals for Chapter 32 To learn why a light
More informationUNIVERSITY OF TECHNOLOGY Laser & Opto-Electronic Eng. Dept rd YEAR. The Electromagnetic Waves
Spectroscopy Interaction of electromagnetic radiation with matter yields that energy is absorbed or emitted by matter in discrete quantities (quanta). Measurement of the frequency or (wave length) of the
More informationPhotochemical principles
Chapter 1 Photochemical principles Dr. Suzan A. Khayyat 1 Photochemistry Photochemistry is concerned with the absorption, excitation and emission of photons by atoms, atomic ions, molecules, molecular
More informationElectromagnetic radiation simply a stream of photons (a bundle of energy) What are photons???
Electromagnetic radiation simply a stream of photons (a bundle of energy) What are photons??? no mass travel in a wave like pattern move at the speed of light contain a certain amount (or bundle) of energy
More information0.4 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 informationRevision checklist. Step Learning outcome Had a look Nearly there Nailed it! Step Learning outcome Had a look Nearly there Nailed it!
SP4 Waves SP4a Describing waves Step Learning outcome Had a look Nearly there Nailed it Recall that waves transfer energy and information but do not transfer matter. Describe waves using the terms frequency,
More informationPhysics Common Assessment Unit 5-8 3rd Nine Weeks
1) What is the direction of the force(s) that maintain(s) circular motion? A) one force pulls the object inward toward the radial center while another force pushes the object at a right angle to the first
More informationPhysics 202, Lecture 21
Physics 202, Lecture 21 Today s Topics Electromagnetic waves (overview) Maxwell s equations Examples of EM waves Wave Motion (Review ch. 16) Wave: General Waves (Review of Ch. 16) Propagation of a physical
More informationHigh frequency photons have more energy than low frequency photons. Microwave radiation has the lowest frequency in the electromagnetic spectrum.
4 (a) Some of the statements below are true, and some are false. Put a tick ( ) in the correct box after each statement. High frequency photons have more energy than low frequency photons. Microwave radiation
More informationElectromagnetic 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 informationLight demonstrates the characteristics of A. particles, only B. waves, only C. both particles and waves D. neither particles nor waves
Which pair of terms best describes light waves traveling from the Sun to Earth? A. electromagnetic and transverse B. electromagnetic and longitudinal C. mechanical and transverse D. mechanical and longitudinal
More informationAnnouncements Self-inductance. Self-inductance. RL Circuit. RL Circuit, cont 3/11/2011. Chapter (not.9-.10) τ = R. Electromagnetic Waves
Chapter 21.8-13(not.9-.10) Electromagnetic Announcements Clicker quizzes NO LONGER GRADED! WebAssign HW Set 8 due this Friday Problems cover material from Chapters 21-22 Office hours: My office hours today
More informationWrite the electron configuration for Chromium (Cr):
Write the electron configuration for Chromium (Cr): Energy level Aufbau Principle Atomic orbital Quantum Hund s Rule Atomic number Electron Configuration Whole number Pauli Exlcusion Principle Quantum
More informationChapter 7. Part I Dr. Stone Stan State
Chapter 7 Part I Dr. Stone Stan State 1 2 Electromagnetic Radiation Perpendicular oscillating fields: Electric: PET scan: gamma rays X-rays Visible light Infrared (heat) Microwaves Magnetic MRI = magnetic
More informationELECTROMAGNETIC WAVES
ELECTROMAGNETIC WAVES VERY SHORT ANSWER QUESTIONS Q-1. Light of uniform intensity shines perpendicularly on a totally absorbing surface, fully illuminating the surface. If the area of the surface is decreased,
More informationWave 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 informationPlanetary Science: Investigations 9-10 I-Check Quiz STUDY GUIDE- ANSWER KEY Name HR Date
1. How are different types of radiation arranged along the electromagnetic spectrum? A. By how fast they travel incorrect answer B. By their sources incorrect answer C. By the amount of energy they carry
More informationTides Light the Electromagnetic Spectrum Thermal Radiation. Events. Homework Due Next time (Sept. 22) Exam I on Sept. 24
Events Today Tides Light the Electromagnetic Spectrum Thermal Radiation Homework Due Next time (Sept. 22) Exam I on Sept. 24 Why are stars and planets spherical? Gravity pulls - it is an attractive force
More informationUnit 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 informationPlanetary Science: Investigations 9-10 I-Check Quiz STUDY GUIDE Name HR Date
1. How are different types of radiation arranged along the electromagnetic spectrum? A. By how fast they travel incorrect answer B. By their sources incorrect answer C. By the amount of energy they carry
More informationChapter 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 informationAstronomical Observations: Distance & Light 7/2/09. Astronomy 101
Astronomical Observations: Distance & Light 7/2/09 Astronomy 101 Astronomy Picture of the Day Astronomy 101 Something Cool: Lasers on the Moon Astronomy 101 Outline for Today Astronomy Picture of the Day
More informationChapter 27: Light. What is light?
Chapter 27: Light What is light? Scientists first theorized light was a wave as it behaved with a wave properties, i.e. diffraction and interference. In 1905, Einstein realized that light was behaving
More informationLIGHT WAVES AND PARTICLES
LIGHT WAVES AND PARTICLES THE ELECTROMAGNETIC SPECTRUM The light we see is only a tiny part of a much larger set of transverse waves. Like all waves, these carry energy without moving matter Although they
More informationThe Nature of Light. We have a dual model
Light and Atoms Properties of Light We can come to understand the composition of distant bodies by analyzing the light they emit This analysis can tell us about the composition as well as the temperature
More informationThe 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 informationAC Circuits and Electromagnetic Waves
AC Circuits and Electromagnetic Waves Physics 102 Lecture 5 7 March 2002 MIDTERM Wednesday, March 13, 7:30-9:00 pm, this room Material: through next week AC circuits Next week: no lecture, no labs, no
More informationFluorescence. 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 informationReading for Meaning and the Electromagnetic Spectrum!
Earth Science Zimmerman Name: Period: Reading for Meaning and the Electromagnetic Spectrum! HOOK: An astronomer discovers a new galaxy. How can the Doppler Effect be applied to determine if that galaxy
More informationWavelength (λ)- Frequency (ν)- Which of the following has a higher frequency?
Name: Unit 5- Light and Energy Electromagnetic Spectrum Notes Electromagnetic radiation is a form of energy that emits wave-like behavior as it travels through space. Amplitude (a)- Wavelength (λ)- Which
More informationWhich of the following classes of electromagnetic waves will not ionise neutral atoms?
1 In an experiment to demonstrate the photoelectric effect, a charged metal plate is illuminated with light from different sources. The plate loses its charge when an ultraviolet light source is used but
More information(Total 1 mark) IB Questionbank Physics 1
1. A transverse wave travels from left to right. The diagram below shows how, at a particular instant of time, the displacement of particles in the medium varies with position. Which arrow represents the
More informationPhysics Curriculum Map - Norwell High School SUBJECT: Physics Grade Level: 11 or 12. Month or Unit: September
SUBJECT: Physics Grade Level: 11 or 12 Month or Unit: September Scientific Inquiry Skills Scientific literacy can be achieved as students inquire about chemical phenomena. The curriculum should include
More informationLight carries energy. Lecture 5 Understand Light. Is light. Light as a Particle. ANSWER: Both.
Light carries energy Lecture 5 Understand Light Reading: Chapter 6 You feel energy carried by light when light hits your skin. Energy Conservation: Radiation energy will be given to molecules making your
More informationThe Electromagnetic Spectrum
The Electromagnetic Spectrum A Brief History of Light 1000 AD It was proposed that light consisted of tiny particles Newton Used this particle model to explain reflection and refraction Huygens 1678 Explained
More informationChapter 33. Electromagnetic Waves
Chapter 33 Electromagnetic Waves Today s information age is based almost entirely on the physics of electromagnetic waves. The connection between electric and magnetic fields to produce light is own of
More informationELECTROMAGNETIC WAVES WHAT IS LIGHT?
VISUAL PHYSICS ONLINE MODULE 7 NATURE OF LIGHT ELECTROMAGNETIC WAVES WHAT IS LIGHT? James Clerk Maxwell (1831-1879), was a Scottish mathematician and theoretical physicist. He had an unquenchable curiosity
More informationActivity 2: Physics and the Visual Arts
Why? An appreciation for and understanding of the physical processes that underpin the visual arts can be satisfying for an artist and lead to production of some unique pieces such as ferrosculptures:
More information1. Types of Waves. There are three main types of waves:
Chapter 16 WAVES I 1. Types of Waves There are three main types of waves: https://youtu.be/kvc7obkzq9u?t=3m49s 1. Mechanical waves: These are the most familiar waves. Examples include water waves, sound
More informationChapter 17, Electromagnetic Waves Physical Science, McDougal-Littell, 2008
SECTION 1 (PP. 553-558): ELECTROMAGNETIC WAVES HAVE UNIQUE TRAITS. Georgia Standards: S8P4a Identify the characteristics of electromagnetic and mechanical waves; S8P4d Describe how the behavior of waves
More information3. The very long ones are called waves, and the very short ones are called waves.
NASA Mission: Science Introduction to the Electromagnetic Spectrum Web Quest Directions: Load the following website which will discuss the electromagnetic spectrum in detail. http://missionscience.nasa.gov/ems/01_intro.html
More informationPH 222-2C Fall Electromagnetic Waves Lectures Chapter 33 (Halliday/Resnick/Walker, Fundamentals of Physics 8 th edition)
PH 222-2C Fall 2012 Electromagnetic Waves Lectures 21-22 Chapter 33 (Halliday/Resnick/Walker, Fundamentals of Physics 8 th edition) 1 Chapter 33 Electromagnetic Waves Today s information age is based almost
More informationThe Electromagnetic Spectrum
The Electromagnetic Spectrum Learning Objectives! What is Electromagnetic Radiation?! What are spectra? How could we measure a spectrum?! How do wavelengths correspond to colors for optical light? Does
More information4.2 Properties of Visible Light Date: (pages )
4.2 Properties of Visible Light Date: (pages 144-149) Visible light is a mixture of all the colours of the rainbow. A prism refracts light separating the colours. A second prism can recombine the colours
More informationElectromagnetic Waves
Nicholas J. Giordano www.cengage.com/physics/giordano Chapter 23 Electromagnetic Waves Marilyn Akins, PhD Broome Community College Electromagnetic Theory Theoretical understanding of electricity and magnetism
More informationNature of Light. Objectives. What is light What are the different forms
Nature of Light Objectives What is light What are the different forms Light s Importance Light contributes 99% of all observations in Astronomy Light is a form of energy Light is electromagnetic radiation
More informationChapter 4 - Light. Name: Block:
Chapter 4 Notes: Light Name: Block: Properties of Waves Waves are a repeating disturbance or movement that energy through matter or space without causing any displacement of material Features of a wave:
More informationGCSE PHYSICS REVISION LIST
GCSE PHYSICS REVISION LIST OCR Gateway Physics (J249) from 2016 Topic P1: Matter P1.1 Describe how and why the atomic model has changed over time Describe the structure of the atom and discuss the charges
More informationImaging Chain. Imaging Chain. Imaging Chain. 1. Light source. 2. Object interactions. 3. Propagation & Collection: optics (lenses & mirrors)
1. Light source λ [nm] sunset blue sky 2. Object interactions 3. Propagation & Collection: optics (lenses & mirrors) 1 Optics: Lenses Objects Images Optics: Mirrors Object Image 4. Detector or Sensor Photographic
More informationName Date Class _. Please turn to the section titled The Nature of Light.
Please turn to the section titled The Nature of Light. In this section, you will learn that light has both wave and particle characteristics. You will also see that visible light is just part of a wide
More informationPHYSICS. Chapter 16 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT Pearson Education, Inc.
PHYSICS FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E Chapter 16 Lecture RANDALL D. KNIGHT 2017 Pearson Education, Inc. Chapter 16 Traveling Waves IN THIS CHAPTER, you will learn the basic properties
More informationElectrons, Energy, & the Electromagnetic Spectrum Notes
Electrons, Energy, & the Electromagnetic Spectrum Notes Bohr Model Diagram Interpretation What form of EM radiation is released when an electron in a hydrogen atom falls from the 5 th energy level to the
More informationLecture 38: FRI 24 APR Ch.33 Electromagnetic Waves
Physics 2113 Jonathan Dowling Heinrich Hertz (1857 1894) Lecture 38: FRI 24 APR Ch.33 Electromagnetic Waves Maxwell Equations in Empty Space: E da = 0 S B da = 0 S C C B ds = µ ε 0 0 E ds = d dt d dt S
More informationChapter 11. Vibrations and Waves
Chapter 11 Vibrations and Waves Driven Harmonic Motion and Resonance RESONANCE Resonance is the condition in which a time-dependent force can transmit large amounts of energy to an oscillating object,
More informationEM radiation: wave nature and particle nature (Grade 12) *
OpenStax-CNX module: m39511 1 EM radiation: wave nature and particle nature (Grade 12) * Free High School Science Texts Project This work is produced by OpenStax-CNX and licensed under the Creative Commons
More informationTwo point charges, A and B, lie along a line separated by a distance L. The point x is the midpoint of their separation.
Use the following to answer question 1. Two point charges, A and B, lie along a line separated by a distance L. The point x is the midpoint of their separation. 1. Which combination of charges would yield
More informationElectromagnetic Waves. Electromagnetic Spectrum. Electromagnetic Spectrum. Electromagnetic Waves. CH 27-Physics (B) Fall, 2010
Electromagnetic Waves Electromagnetic Spectrum CH 27-Physics (B) Fall, 2010 Electric and magnetic fields always exist When ever one is. the other is The fields can exist in a... They are at. o to each
More informationSchool. Team Number. Optics
School Team Number Optics 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
More informationPhys 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 informationElectromagnetic Waves. Chapter 33 (Halliday/Resnick/Walker, Fundamentals of Physics 8 th edition)
PH 222-3A Spring 2007 Electromagnetic Waves Lecture 22 Chapter 33 (Halliday/Resnick/Walker, Fundamentals of Physics 8 th edition) 1 Chapter 33 Electromagnetic Waves Today s information age is based almost
More informationProperties of Waves. Before You Read. What are the features of a wave?
Properties of Waves Textbook pages 134 143 Before You Read Section 4.1 Summary In this section, you will find out about waves, such as water waves, sound waves, and radio waves. On the lines below, list
More informationSolution 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 informationLECTURE 1: ELECTROMAGNETIC RADIATION
LECTURE 1: ELECTROMAGNETIC RADIATION 1.0 -- PURPOSE OF UNIT The purpose of this unit is to identify and describe some of the basic properties common to all forms of electromagnetic radiation and to identify
More informationReview of Optical Properties of Materials
Review of Optical Properties of Materials Review of optics Absorption in semiconductors: qualitative discussion Derivation of Optical Absorption Coefficient in Direct Semiconductors Photons When dealing
More informationChapter 5 Electrons In Atoms
Chapter 5 Electrons In Atoms 5.1 Revising the Atomic Model 5.2 Electron Arrangement in Atoms 5.3 Atomic Emission Spectra and the Quantum Mechanical Model 1 Copyright Pearson Education, Inc., or its affiliates.
More information