A refl = R A inc, A trans = T A inc.
|
|
- Marilynn Lawrence
- 5 years ago
- Views:
Transcription
1 Reading: Wave Optics 1, 2 Key concepts: Superposition; phase difference; amplitude and intensity; thin film interference; Fraunhofer diffraction; gratings; resolving power. 1.! Questions about interference of waves. Why do we not see interference patterns in the light from the two headlights of a distant car? You are standing outdoors near a corner of a building. Two people around the corner are talking. You can hear them but not see them. How do you hear them? [Reflection from other objects is negligible.] You know the two people are talking, but you are unable to understand their conversation. Why? [They are speaking your language.] 2.! Questions about thin films. When a film of water on glass evaporates the reflected light becomes very bright just before the film is gone. Why?! When a soap film in air gets thin just before breaking the reflected light is very dim. Why? A circular film of oil on water is thinnest near the edge. In the reflected light, would one see blue or red colors in that region of the film? 3.! In Assignment 8 you examined the intensities of the reflected and transmitted rays shown. To analyze the interference of the waves you must work with the amplitudes. Since I A 2 The relations between amplitude magnitudes are: A refl = R A inc, A trans = T A inc. A 0 a b c Show that if R << 1 then we have A b A a >> A c. [This is why we considered only waves a and b in analyzing interference in the reflected light from a thin film.] a b c Show that in this case A a A 0 >> A b >> A c. [This is why interference effects in the transmitted light are negligible for ordinary films.] Show that if R 1 we have A a A 0 >> A b >> A c, so usually nearly all the light is reflected and interference is (usually) negligible.
2 4.! The exception to the conclusion in 3(c) occurs when all the transmitted waves interfere constructively. Write these amplitudes in terms of A 0 and R. Assuming all these waves are in phase, find the total transmitted amplitude. Use the fact that if x < 1 then 1 + x + x 2 + x 3 + = 1 1 x. What does this say about the transmitted light? What about the reflected light?! 5.! We examine the case R 1 in more detail. The transmitted waves have (complex) amplitudes E a = A 0 T, E b = A 0 T Re iδ, E c = A 0 T R 2 e 2iδ,! and so on. Here δ is the phase difference caused by the wave traveling back and forth between the surfaces; thus δ = 2nkt, where n is the film s refractive index and t is its thickness. Show that I trans I 0 = (1 R) R 2 2Rcosδ. [Remember eiδ + e iδ = 2cosδ.] Let R = Use a graphing calculator to plot this formula as a function of δ for π δ 3π. Note the extremely narrow peak at δ = 2π. In (b) take n = 1.5 and t = 200 nm. For what visible wavelength will there be nearly total transmission? If you look at an incident beam of white light transmitted through this system, what will you see? 6.! If light is interpreted as a stream of particle-like photons, the spread δθ in the directions they move is interpreted as a spread δ p in the component p of their momentum (p) perpendicular to the original direction of the beam. That is, before they went through the circular opening they were all moving in the same direction with p = 0, but afterwards their directions vary within the range δθ. Approximately we have δ p = p δθ. The momentum of a photon is related to its wavelength by the quantum formula p = h/λ, where h is Planck s constant. Show that D δ p 1.22h. [This is an example of the Uncertainty Principle.]
3 7.! A wedge-shaped air film is produced by slipping a object of thickness t between two flat glass plates as shown. Light with λ = 500 nm is normally incident from above. In the reflected light there are 400 bright interference bands across the length of the plate, with a dark band at the end where the object is inserted. The plates are 10 cm long and the glass has refractive index 1.4. light t What is t? Ans: 0.1 mm. If the region between the plates were filled with oil with n = 1.25, how many bright bands would be seen? Ans: 500. Suppose the plates are 20 cm long, but the same object is between them as shown. How would this affect the pattern observed (without the oil)? 8.! A lens is coated so as to reduce reflection in the infrared and ultraviolet regions. The coating causes destructive interference in the reflected light for wavelengths 1080 nm and 360 nm but no wavelength in between. If the coating has refractive index 1.4 and the lens has refractive index 1.6, what is the minimum thickness of the coating? Ans: 193 nm. For what visible wavelength is there constructive interference in the reflected light? Ans: 540 nm. 9.! Consider the coated lens in #10, with light normally incident from air. Calculate the reflectivity at the air-coating interface and at the coating-lens interface. Call these R 1 and R 2, respectively. Consider interference between the waves reflected from the coating and from the lens. If it is constructive, what fraction of the incident intensity is reflected? [What are the amplitudes of the two waves in terms of R 1 and R 2? [Take T 1 at the air-coating interface to be 1.] What fraction is reflected if the interference is destructive? [It is not zero.]
4 10.! Questions about resolving power. The resolution of an optical microscope can be increased by immersing the objective lens and the sample in a transparent oil. Why does this work? Radio telescopes make images of distant objects using the waves emitted in the radio part of the spectrum. If a radio telescope receiving waves with λ = 3 cm is to have the same resolution the 5 m (diameter) Hale telescope has with 500 nm light, how large must the diameter of the antenna be? The electrons in an electron microscope are accelerated through a potential difference sufficient to give them a momentum p = mc. [This does not mean they are traveling at speed c; the formula p = mv is valid only for speeds much smaller than c.] Find their debroglie wavelength from the formula λ = h/p, where p is the momentum and h is Planck s constant. Ans: nm. 11.! Questions about gratings. A grating s ability to resolve two spectral lines with nearly the same wavelength is improved if the intensity peaks are narrower. Which factor in the formula for resolving power R = mn expresses this fact? This ability is also improved if the peaks are farther apart in angle. Which factor express this fact? Show that no matter how many lines a grating has, the visible spectrum in 3rd order always overlaps that in 2nd order. 12.! A grating 2 cm wide is used to determine wavelengths of visible light. If two wavelengths with λ av = 500 nm and Δλ = nm are resolved in 2nd order, what is the maximum ruling spacing d? Ans: nm. How small can Δλ be if the 3rd order spectrum is used with this grating? Will the entire visible spectrum [400 to 700 nm] be seen in 3rd order for this grating? Explain how you know.
5 13.! Real light sources never produce only one frequency; there is always a spread of frequencies in the light. So the interference pattern of a film is never as sharp as the equations suggest. This fuzziness increases as the thickness of the film increases, until the pattern gets completely washed out. You are to show why.! Consider interference in light reflected at normal incidence from a thin air film of thickness t between parallel glass plates. The light consists equally of all frequencies between f and f + Δf. For frequency f the phase difference between the waves reflected from the top and bottom of the air film is δ 1 = 2mπ (m is an integer), so there is constructive interference in the reflected light for this frequency. For frequency f + Δf, the phase difference is δ 2 = (2m + 1)π, giving destructive interference for this frequency. Frequencies between f and f + Δf will give reflected intensities between these two extremes. For such a light source the net reflected intensity will be the same as if there were no interference at all. Write the formula for the phase difference between the waves in terms of the frequency f and the thickness t of the film. Find the value of Δf in terms of t for which the situation described occurs. Let the shortest and longest wavelengths in the light be 500 nm and 501 nm. For what value of t will the situation described occur? Ans: 62.5 µm.!![a film this thick or thicker will not give a discernible interference pattern for this source.]
Electricity & Optics
Physics 24100 Electricity & Optics Lecture 26 Chapter 33 sec. 1-4 Fall 2017 Semester Professor Koltick Interference of Light Interference phenomena are a consequence of the wave-like nature of light Electric
More informationPhysics 142 Wave Optics 1 Page 1. Wave Optics 1. For every complex problem there is one solution that is simple, neat, and wrong. H.L.
Physics 142 Wave Optics 1 Page 1 Wave Optics 1 For every complex problem there is one solution that is simple, neat, and wrong. H.L. Mencken Interference and diffraction of waves The essential characteristic
More informationTA/TI survey. Phy Phy
TA/TI survey https://webapps.pas.rochester.edu/secure/phpq/ Phy121 7 60 73 Phy123 1 6 11 Chapter 34 The Wave Nature of Light; Interference Units of Chapter 34 34-5 Interference in Thin Films 34-6 Michelson
More informationDiscussion 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 informationInterference- Michelson Interferometer. Interference lecture by Dr. T.Vishwam
Interference- Michelson Interferometer Interference lecture by Dr. T.Vishwam * Measurement of the coherence length of a spectral line * Measurement of thickness of thin transparent flakes * Measurement
More informationRevision Guide. Chapter 7 Quantum Behaviour
Revision Guide Chapter 7 Quantum Behaviour Contents CONTENTS... 2 REVISION CHECKLIST... 3 REVISION NOTES... 4 QUANTUM BEHAVIOUR... 4 Random arrival of photons... 4 Photoelectric effect... 5 PHASE AN PHASORS...
More informationExam 4. P202 Spring 2004 Instructor: Prof. Sinova
Exam 4 P202 Spring 2004 Instructor: Prof. Sinova Name: Date: 4/22/04 Section: All work must be shown to get credit for the answer marked. You must show or state your reasoning. If the answer marked does
More informationC. Incorrect! The velocity of electromagnetic waves in a vacuum is the same, 3.14 x 10 8 m/s.
AP Physics - Problem Drill 21: Physical Optics 1. Which of these statements is incorrect? Question 01 (A) Visible light is a small part of the electromagnetic spectrum. (B) An electromagnetic wave is a
More informationUNIT-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 informationWaves Part III Electromagnetic waves
Waves Part III Electromagnetic waves Electromagnetic (light) waves Transverse waves Transport energy (and momentum) Can travel through vacuum (!) and certain solids, liquids and gases Do not transport
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 informationSome properties of waves: Huygens principle Superposition Coherence Interference Young s double-slit experiment Thin-film interference
Some properties of waves: Huygens principle Superposition Coherence Interference Young s double-slit experiment Thin-film interference Phys 2435: Chap. 35, Pg 1 Geometrical Optics Assumption: the dimensions
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 informationAP 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 informationA) 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 informationDIFFRACTION GRATING. OBJECTIVE: To use the diffraction grating in the formation of spectra and in the measurement of wavelengths.
DIFFRACTION GRATING OBJECTIVE: To use the diffraction grating in the formation of spectra and in the measurement of wavelengths. THEORY: The operation of the grating is depicted in Fig. 1 on page Lens
More informationProperties of waves. Question. Ch 22, : Waves & interference. Question. Phase difference & interference
Exam Tue. Sep. 9, 5:30-7 pm, 45 Birge Covers.5-7,, 3.-4, 3.7, 4.-5, 6 + lecture, lab, discussion, HW Chap.5-7, Waves, interference, and diffraction Chap 3 Reflection, refraction, and image formation Chap
More informationCHAPTERS: 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 informationChapter 10: Wave Properties of Particles
Chapter 10: Wave Properties of Particles Particles such as electrons may demonstrate wave properties under certain conditions. The electron microscope uses these properties to produce magnified images
More informationAtomic Spectra. d sin θ = mλ (1)
Atomic Spectra Objectives: To measure the wavelengths of visible light emitted by atomic hydrogen and verify that the measured wavelengths obey the empirical Rydberg formula. To observe emission spectra
More informationEngineering 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 information1. Waves and Particles 2. Interference of Waves 3. Wave Nature of Light
1. Waves and Particles 2. Interference of Waves 3. Wave Nature of Light 1. Double-Slit Eperiment reading: Chapter 22 2. Single-Slit Diffraction reading: Chapter 22 3. Diffraction Grating reading: Chapter
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 informationPhysics 116. Nov 3, Lecture 21 Wave optics. R. J. Wilkes 11/3/11 1
Physics 116 Lecture 21 Wave optics Nov 3, 2011 R. J. Wilkes Email: ph116@u.washington.edu 11/3/11 1 Announcements 3 clickers have quiz data logged, but no registration: 622961 649314 614235 If one of these
More information2. The figure shows the path of a portion of a ray of light as it passes through three different materials. Note: The figure is drawn to scale.
1. The bending of light as it moves from one medium to another with differing indices of refraction is due to a change in what property of the light? A) amplitude B) period C) frequency D) speed E) color
More informationPre-lab Quiz/PHYS 224. Your name Lab section
Pre-lab Quiz/PHYS 224 THE DIFFRACTION GRATING AND THE OPTICAL SPECTRUM Your name Lab section 1. What are the goals of this experiment? 2. If the period of a diffraction grating is d = 1,000 nm, where the
More informationChapter 35 Physical Optics: Light as a wave
Chapter 35 Physical Optics: Light as a wave Interference happens when two or more waves combine Examples of no-pigmented color presentation (iridescence): Beautiful oil spills Colors on soap bubble Color
More informationMIDTERM 3 REVIEW SESSION. Dr. Flera Rizatdinova
MIDTERM 3 REVIEW SESSION Dr. Flera Rizatdinova Summary of Chapter 23 Index of refraction: Angle of reflection equals angle of incidence Plane mirror: image is virtual, upright, and the same size as the
More informationThe Quantum Model of the Hydrogen Atom
Physics 109 Science 1 Experiment 1 1 The Quantum Model of the Hydrogen Atom In this experiment you will use a spectrometer to determine the wavelengths of the visible lines of atomic hydrogen. The goal
More informationA beam of coherent monochromatic light from a distant galaxy is used in an optics experiment on Earth.
Waves_P2 [152 marks] A beam of coherent monochromatic light from a distant galaxy is used in an optics experiment on Earth. The beam is incident normally on a double slit. The distance between the slits
More informationLecture PowerPoints. Chapter 24 Physics: Principles with Applications, 7 th edition Giancoli
Lecture PowerPoints Chapter 24 Physics: Principles with Applications, 7 th edition Giancoli This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching
More informationJRE Group of Institutions ASSIGNMENT # 1 Special Theory of Relativity
ASSIGNMENT # 1 Special Theory of Relativity 1. What was the objective of conducting the Michelson-Morley experiment? Describe the experiment. How is the negative result of the experiment interpreted? 2.
More informationToday: Finish Color (Ch. 27) Intro to Quantum Theory (Ch.31)
Final exam: Dec 20, 11.30am -1.30pm, here, cumulative Chs: 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 19, 20, 22, 23, 24, 25, 26, 27, 31 Review Session Tue Dec 13 Today: Finish Color (Ch. 27) Intro to Quantum
More informationEinstein 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 informationSECTION 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 information3/9/2011. 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 informationDownloaded from
Question 10.1: Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of (a) reflected, and (b) refracted light? Refractive index
More information5.3. 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 informationLAST NAME First Name(s) Student Number Practical Group as on student card as on student card Code
LAST NAME First Name(s) Student Number Practical Group as on student card as on student card Code PHY132H1S Term Test version A Tuesday, January 27, 2015 Duration: 80 minutes Aids allowed: A pocket calculator
More informationLAST NAME First Name(s) Student Number Practical Group as on student card as on student card Code
LAST NAME First Name(s) Student Number Practical Group as on student card as on student card Code PHY132H1S Term Test version B Tuesday, January 27, 2015 Duration: 80 minutes Aids allowed: A pocket calculator
More informationPreview from Notesale.co.uk Page 1 of 38
F UNDAMENTALS OF PHOTONICS Module 1.1 Nature and Properties of Light Linda J. Vandergriff Director of Photonics System Engineering Science Applications International Corporation McLean, Virginia Light
More informationExam Review Practice Questions. Electric Forces. the force is zero. Four charges are fixed at the corners of a square of sides 4 m as shown.
Exam Review Practice Questions Electric Forces QUESTION 1 Three charges of equal magnitude are positioned as shown, with Q3 equidistant from Q1 and Q2. Q1 and Q3 are positive charges; Q2 is negative. What
More informationChapter 36, example problems:
Chapter 6, example problems: (6.0) Light wave with electric field E y (x, t) = E max sin [(.20 0 7 m ) x ω t] passes through a slit. First dark band at ±2.6 from the center of the diffraction pattern.
More informationTelescopes: Portals of Discovery
Telescopes: Portals of Discovery How do light and matter interact? Emission Absorption Transmission Transparent objects transmit light Opaque objects block (absorb) light Reflection or Scattering Reflection
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 informationDept. of Physics, MIT Manipal 1
Chapter 1: Optics 1. In the phenomenon of interference, there is A Annihilation of light energy B Addition of energy C Redistribution energy D Creation of energy 2. Interference fringes are obtained using
More informationNORTHERN ILLINOIS UNIVERSITY PHYSICS DEPARTMENT. Physics 211 E&M and Quantum Physics Spring Lab #9: Diffraction Spectroscopy
NORTHERN ILLINOIS UNIVERSITY PHYSICS DEPARTMENT Physics 211 E&M and Quantum Physics Spring 2018 Lab #9: Diffraction Spectroscopy Lab Writeup Due: Mon/Wed/Thu/Fri, April 30/ May 2/3/4, 2018 Background All
More informationPRINCIPLES OF PHYSICAL OPTICS
PRINCIPLES OF PHYSICAL OPTICS C. A. Bennett University of North Carolina At Asheville WILEY- INTERSCIENCE A JOHN WILEY & SONS, INC., PUBLICATION CONTENTS Preface 1 The Physics of Waves 1 1.1 Introduction
More informationPHYS 4 CONCEPT PACKET Complete
PHYS 4 CONCEPT PACKET Complete Written by Jeremy Robinson, Head Instructor Find Out More +Private Instruction +Review Sessions WWW.GRADEPEAK.COM Need Help? Online Private Instruction Anytime, Anywhere
More informationPhysics 9e/Cutnell. correlated to the. College Board AP Physics 2 Course Objectives
correlated to the College Board AP Physics 2 Course Objectives Big Idea 1: Objects and systems have properties such as mass and charge. Systems may have internal structure. Enduring Understanding 1.A:
More information5.At what speed is a particle traveling if its kinetic energy is three times its rest energy? A) 0.879c B) 0.918c C) 0.943c D) 0.
1.Two identical light waves, A and B, are emitted from different sources and meet at a point P. The distance from the source of A to the point P is L A ; and the source of B is a distance L B from P. Which
More informationPHYS General Physics II Lab The Balmer Series for Hydrogen Source. c = speed of light = 3 x 10 8 m/s
PHYS 1040 - General Physics II Lab The Balmer Series for Hydrogen Source Purpose: The purpose of this experiment is to analyze the emission of light from a hydrogen source and measure and the wavelengths
More informationWeek 7: Interference
Week 7: Interference Superposition: Till now we have mostly discusssed single waves. While discussing group velocity we did talk briefly about superposing more than one wave. We will now focus on superposition
More informationPhys102 Lecture Diffraction of Light
Phys102 Lecture 31-33 Diffraction of Light Key Points Diffraction by a Single Slit Diffraction in the Double-Slit Experiment Limits of Resolution Diffraction Grating and Spectroscopy Polarization References
More informationTOPIC: LIGHT, ELECTROMAGNETIC WAVES, 2D AND 3D WAVEFRONTS
TOPIC: LIGHT, ELECTROMAGNETIC WAVES, 2D AND 3D WAVEFRONTS Learner Note: You need to know your definitions very well. You need to know the difference between refraction, reflection and diffraction. These
More informationName 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 informationCHEM6416 Theory of Molecular Spectroscopy 2013Jan Spectroscopy frequency dependence of the interaction of light with matter
CHEM6416 Theory of Molecular Spectroscopy 2013Jan22 1 1. Spectroscopy frequency dependence of the interaction of light with matter 1.1. Absorption (excitation), emission, diffraction, scattering, refraction
More informationRevision Guide for Chapter 7
Revision Guide for Chapter 7 Contents Student s Checklist Revision Notes Path of least time... 4 Interference of photons... 5 Quantum behaviour... 5 Photons... 6 Electron diffraction... 7 Probability...
More informationAstronomy. 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 informationHigh-Resolution. Transmission. Electron Microscopy
Part 4 High-Resolution Transmission Electron Microscopy 186 Significance high-resolution transmission electron microscopy (HRTEM): resolve object details smaller than 1nm (10 9 m) image the interior of
More informationOPSE FINAL EXAM Fall 2015 YOU MUST SHOW YOUR WORK. ANSWERS THAT ARE NOT JUSTIFIED WILL BE GIVEN ZERO CREDIT.
CLOSED BOOK. Equation Sheet is provided. YOU MUST SHOW YOUR WORK. ANSWERS THAT ARE NOT JUSTIFIED WILL BE GIVEN ZERO CREDIT. ALL NUMERICAL ANSERS MUST HAVE UNITS INDICATED. (Except dimensionless units like
More informationTopic 4 &11 Review Waves & Oscillations
Name: Date: Topic 4 &11 Review Waves & Oscillations 1. A source produces water waves of frequency 10 Hz. The graph shows the variation with horizontal position of the vertical displacement of the surface
More informationBannerman High School Physics Department. Making Accurate Statements. Higher Physics. Quanta and Waves
Bannerman High School Physics Department Making Accurate Statements Higher Physics Quanta and Waves Mandatory Key Area: Particle Physics 1. Use your knowledge of physics to estimate the ratio of the smallest
More informationobject objective lens eyepiece lens
Advancing Physics G495 June 2015 SET #1 ANSWERS Field and Particle Pictures Seeing with electrons The compound optical microscope Q1. Before attempting this question it may be helpful to review ray diagram
More informationLarbert High School. Quanta and Waves. Homework Exercises ADVANCED HIGHER PHYSICS
Larbert High School ADVANCED HIGHER PHYSICS Quanta and Waves Homework Exercises 3.1 3.6 3.1 Intro to Quantum Theory HW 1. (a) Explain what is meant by term black body. (1) (b) State two observations that
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 informationExperiment #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 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 informationOptics.
Optics www.optics.rochester.edu/classes/opt100/opt100page.html Course outline Light is a Ray (Geometrical Optics) 1. Nature of light 2. Production and measurement of light 3. Geometrical optics 4. Matrix
More informationTelescopes (Chapter 6)
Telescopes (Chapter 6) Based on Chapter 6 This material will be useful for understanding Chapters 7 and 10 on Our planetary system and Jovian planet systems Chapter 5 on Light will be useful for understanding
More informationName : Roll No. :.... Invigilator s Signature :.. CS/B.Tech (NEW)/SEM-2/PH-201/2013 2013 PHYSICS - I Time Allotted : 3 Hours Full Marks : 70 The figures in the margin indicate full marks. Candidates are
More informationa) What is the diameter of the wire? Assume that the last minima occurs at the right edge where the wire is placed. Problem 1 Problem Weight is: 1
1 Notes: 1. To submit a problem, just click the Submit button under it. The Submit All button is not necessary. 2. A problem accepted as correct by CAPA will be highlighted in green. Once you see this,
More informationPhysics Worksheet Sound and Light Section: Name:
Do Now: What is common between sound and light? What are the differences between sound and light? Sound Waves 1. Define Sound Waves from three different perspectives 6. Speed of sound =. Formula: v =.
More informationPS210 - Optical Techniques. Section VI
PS210 - Optical Techniques Section VI Section I Light as Waves, Rays and Photons Section II Geometrical Optics & Optical Instrumentation Section III Periodic and Non-Periodic (Aperiodic) Waves Section
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 informationNYS STANDARD/KEY IDEA/PERFORMANCE INDICATOR 5.1 a-e. 5.1a Measured quantities can be classified as either vector or scalar.
INDICATOR 5.1 a-e September Unit 1 Units and Scientific Notation SI System of Units Unit Conversion Scientific Notation Significant Figures Graphical Analysis Unit Kinematics Scalar vs. vector Displacement/dis
More informationCHAPTER 10. Knowledge
CHAPTER 10 Review K/U Knowledge/Understanding T/I Thinking/Investigation C Communication A Application Knowledge For each question, select the best answer from the four alternatives. 1. A light wave travels
More informationLECTURE 11 ELECTROMAGNETIC WAVES & POLARIZATION. Instructor: Kazumi Tolich
LECTURE 11 ELECTROMAGNETIC WAVES & POLARIZATION Instructor: Kazumi Tolich Lecture 11 2 25.5 Electromagnetic waves Induced fields Properties of electromagnetic waves Polarization Energy of electromagnetic
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 Grating Spectrometer and Atomic Spectra
PHY 192 Grating Spectrometer Spring 2012 1 The Grating Spectrometer and Atomic Spectra Introduction In the previous experiment diffraction and interference were discussed and at the end a diffraction grating
More informationExperiment 9. Emission Spectra. measure the emission spectrum of a source of light using the digital spectrometer.
Experiment 9 Emission Spectra 9.1 Objectives By the end of this experiment, you will be able to: measure the emission spectrum of a source of light using the digital spectrometer. find the wavelength of
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 informationOPSE FINAL EXAM Fall 2016 YOU MUST SHOW YOUR WORK. ANSWERS THAT ARE NOT JUSTIFIED WILL BE GIVEN ZERO CREDIT.
CLOSED BOOK. Equation Sheet is provided. YOU MUST SHOW YOUR WORK. ANSWERS THAT ARE NOT JUSTIFIED WILL BE GIVEN ZERO CREDIT. ALL NUMERICAL ANSERS MUST HAVE UNITS INDICATED. (Except dimensionless units like
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 informationEnd-of-Chapter Exercises
Wave-particle duality Light is not the only thing that exhibits both a wave nature and a particle nature everything exhibits such wave-particle duality. The wavelength of an object is inversely proportional
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 informationName : Roll No. :.. Invigilator s Signature :.. CS/B.Tech/SEM-2/PH-201/2010 2010 ENGINEERING PHYSICS Time Allotted : 3 Hours Full Marks : 70 The figures in the margin indicate full marks. Candidates are
More informationExam 3 Solutions. Answer: 1830 Solution: Because of equal and opposite electrical forces, we have conservation of momentum, m e
Exam 3 Solutions Prof. Paul Avery Prof. Zongan iu Apr. 27, 2013 1. An electron and a proton, located far apart and initially at rest, accelerate toward each other in a location undisturbed by any other
More informationModern Physics notes Paul Fendley Lecture 3
Modern Physics notes Paul Fendley fendley@virginia.edu Lecture 3 Electron Wavelength Probability Amplitude Which slit? Photons Born, IV.4 Feynman, 1.6-7, 2.1 Fowler, Rays and Particles The wavelength of
More informationCircular Motion & Oscillations
A Physics Revision Page 1 of 8 Circular Motion & Oscillations Angular speed, ω = Δθ = πf (assuming angle is a complete revolution, in radians) Δt mv Centripetal Force, F = r Simple Harmonic Motion is a
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 informationPAP 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 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 informationPhysical Electronics. First class (1)
Physical Electronics First class (1) Bohr s Model Why don t the electrons fall into the nucleus? Move like planets around the sun. In circular orbits at different levels. Amounts of energy separate one
More informationSunlight. Sunlight 2. Sunlight 4. Sunlight 3. Sunlight 5. Sunlight 6
Sunlight 1 Sunlight 2 Introductory Question Sunlight When you look up at the sky during the day, is the light from distant stars reaching your eyes? A. Yes B. No Sunlight 3 Observations about Sunlight
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 informationSome Topics in Optics
Some Topics in Optics The HeNe LASER The index of refraction and dispersion Interference The Michelson Interferometer Diffraction Wavemeter Fabry-Pérot Etalon and Interferometer The Helium Neon LASER A
More informationMichelson Interferometer
Michelson Interferometer Objective Determination of the wave length of the light of the helium-neon laser by means of Michelson interferometer subsectionprinciple and Task Light is made to produce interference
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 informationTHE INDIAN COMMUNITY SCHOOL, KUWAIT SECOND SEMESTER EXAMINATION PHYSICS (Theory)
CLASS:XII Marks : 70 General Instructions: THE INDIAN COMMUNITY SCHOOL, KUWAIT SECOND SEMESTER EXAMINATION 2016-17 PHYSICS (Theory) Time : Hrs (i) (ii) (iii) (iv) (v) All questions are compulsory. This
More information