Wave Optics Questions and Answers

Radiowave Microwave Infrared wave X ray UV light Gamma rays Visible light Infrared wave UV light Gamma Rays UV light Radiowave Microwave Radiowave X ray Question 19 Imagine that you are performing optical microscopy and can only use one color of light to examine your sample which color would give you the best resolution allow you to see the smallest details o Blue o Orange o Violet o Green O Red 5 pts Question 20 5 pts

What is the speed of a proton with a de Broglie wavelength of 0 17 nm Express your answer in meters per second V AEO

a lens affects the distance and magnification of images 22 4 They have been tasked with determining the focal lengths and image magnification for two lenses using their optical bench The students collect the following measurements Lens A Lens B Object height Object distance Image height Image distance Focal length Object height Object distance 6cm Image height Image distance 30cm 2 60cm TO LUIDA 00 6cm 30cm 6cm 30cm 2 30cm 6cm 30cm 60cm 30cm Focal length Choose the answer that demonstrates the correct relationship between lenses A and B in terms of focal lengths and image height and identify whether the image will be upright or inverted Focal length Lens A Lens B Image height Lens A Lens B upright image LUID D length of Focal length Lens A Lens B Image height Lens A Lens B inverted image Focal length Lens A Lens B Image height Lens A Lens B upright image Focal length Lens A Lens B Image height Lens A Lens B inverted image

What is the wavelength in nm of a photon with energy 0 30 eV2 Express your answer in nanometers 4100 nm Submit Previous Answers Correct Part B Is this wavelength visible ultraviolet or infrared light O visible light O ultraviolet light

Required information Light of 650 0 nm is incident on two slits A maximum is seen at an angle of 4 10 and the next minimum at 5 12 hat is the distance d between the slits

33 Problem 3 Suppose polarized light passes through a polarizing Randomized Variables 0 19 5 A To what percent of its original value is the intensity of the polarized light reduced 1 10 sin cos tan 1 7 8 9 HOME Gra Ded Pote Sub Atte

33 Randomized Variables 0 19 5 To what percent of its original value is the intensity of the polarized light reduced 1 10 sin cos cotan asin atan acotan cosh tanh tan acos sinh cotanh 1 E 14 1 8 9 5 6 1 2 3 0 7 HOME END C F 0

5 8 The energy of a photon varies 3 inversely with frequency 4 inversely with the square of frequency Proof Use the equation and a graph or a sample calculation 6 Which is a proper algebraic expression for the wavelength of a photon Proof Explain 1 directly with wavelength 2 directly with frequency he E phon Proof Show algebraic solution of Explain 1 hcE phon 2 1 red 2 yellow 3 4 7 Which of the photons given would have the greatest energy 1 polarization 2 diffraction Ephoto he hE photon 3 green 4 blue Which phenomenon can only be explained by assuming that light is quantized 3 interference 4 photoelectric effect 9 Experiments performed with light indicate that light exhibits particle properties only 1 2 wave properties only 3 4 neither particle nor wave properties both particle and wave properties Proof Give examples and explain 10 A tritium nucleus is formed by combining two neutrons and a proton The mass of this nucleus is 9 106 x 10 universal mass units less than the combined mass of the particles from which it is formed Approximately how much energy is released when this nucleus is formed 3 8 48 Mev 4 273 MeV Proof Calculation 1 8 48 x 102 MeV 2 2 73 MeV 11 Compared to the wavelength of the photon before the collision the wavelength of the photon after the collision is Before Collision Incident High energy Photon Electron in an Atom 1 shorter 2 longer 3 the same Proof Explain using the photon equation and or sample calculations F

3 The hydrogen spectrum produces a red line with wavelength of 656 x 10 9 m and a violet line with wavelength 434 x 109 m What is the first order angular separation between these two spectral maxima when the light passes through a diffraction grating with 600 lines per mm

A prism of prism angle 90 and refractive index 2 is kept in air as shown O What should be angle of incidence so that ray will come out of prism O i 45 i 60 i 30 90 None of these 2

Required information A laser has a wavelength of 581 nm A grating and a lens are used to split the beam into three parallel beams spaced 1 85 cm apart hat is the maximal value of the slit spacing so that the grating produces three and only three beams

36 Monochromatic light from a distant source is incident on a slit 0 850 mm wide On a screen 4 50 m away the distance from the central maximum of the diffraction pattern to the first minimum is 2 89 mm What is the wavelength of the light 624 nm 546 nm 1090 nm 652 nm

2 Define the focal length of a concave mirror Draw a diagram to illustrate your definition

In order for two identical waves to completely cancel each other out they must be exactly one half wavelength out of phase O True False

1 How far from above the center point of the screen will the first mimimum be when red light with a wavelength of 7 0 x 10 m that passes through a single slit that is 2 0 x 10 5 m that is 0 50 m from the screen 2 The first minimum line is 5 0 x 10 m above the center of the screen when blue light with a wavelength of 4 5 x 10 7 m is shown upon a single slit that is 4 0 x 10 m wide How far is the screen from the slit 3 What is the wavelength of light that is shown upon a single slit that is 6 0 x 10 5 m wide and is 1 0 x 10 m from a screen on which the third minimum is 2 0 x 10 3 m below the central maximum

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1 00 into the gem at an incident angle of 45 and measures the angle of refraction to be 19 2 Based on this information is the ring real diamond or is it fake Your group s solution should include the following A sketch which shows all relevant objects and is labeled with all relevant quantities A ray diagram showing the details of the path light takes through the gemstone All of the work needed to answer the questions posed including written explanations of each step Remember to explain not just what was done but how you knew to do each step Evaluation of your solution

Based on the diagram describe S A L T this image Enlarged Same Size Erect Located between F and 2F Located in front of the lens Inverted Virtual

When ultraviolet light with a wavelength of 400 nm alls on a certain metal surface the maximum kinetic energy of the emitted photoelectrons is 1 10 eV Part A What is the maximum kinetic energy Ko of the photoelectrons when light of wavelength 310 nm falls on the same surface Use h 6 63x10 34 J Is for Planck s constant and c 3 00x108 m s for the speed of light and express your answer in electron volts View Available Hint s AE t poss 2

A demonstration of interference is done in class A Slinky is stretched out from end to end Three cups are placed on the ground positioned just to the side of the Slinky Two pulses are introduced into each end at the same time The pulses travel towards each other as shown in the diagram FO GO O What will be observed after the pulses pass by each other Select one a All three cups will be knocked over Ob Nothing will happen to any of the cups they will all be left standing c Cups 1 and 3 will be knocked over cup 2 will be left standing Od Only cup 2 will be knocked over cups 1 and 3 will be left standing

A diffraction grating produces a second order maximum for red light 650 nm at an angle of 37 5 How many lines per cm does the grating have Select one O a 9 366 lines cm 2 340 lines cm O C 468 300 lines cm O b

A single slit diffraction set up has a slit of width 8 37 x 10 6 m and is illuminated by light of wavelength 484 0 nm The screen showing the diffraction pattern is 6 00 m away What is the distance on the screen between the m 2 and m 2 dark fringes Select one O a O b 0 70 m 1 80 m OC 1 05 m 1 40 m O d

A double slit experiment is illuminated by light of wavelength 520 nm The m 3 bright fringe is found to be at an angle of 53 0 What is the spacing between the two slits Select one O a O b 1 30 x 10 6 m O 1 18 x 10 6 m C 2 59 x 10 6 m 1 95 x 10 6 m O d

Due Monday April 25th Note first order maximum means m 1 as opposed to the central maximum m 0 1 How many lines per centimeter are there on a diffraction grating that gives a first order maximum for 480 nm blue light at an angle of 25 0 degrees

1 point At what angle will light bend to if it is traveling from Air refractive index 1 00 at an angle of 60 degrees from the normal and it hits diamond refractive index of 2 4 1 3

7 What is the frequency of a light wave with a wavelength of 10000 m 10 points

ar WP P 4 Based on your understanding of interference and diffraction explain why you think intensity profile of a double slit follows the pattern shown in the figure below How do you think this pattern would change as a the separation between the slits chan and b the width of the two slits changes

2 At what angle is the first order maximum for 450 nm wavelength blue light falling on double slits separated by 0 0500 mm

If an X ray has a wavelength of 5 nm what is its frequency Answer in units of Hz Answer in units of Hz

A single-slit with a width of 23.2 □m is used to create a pattern on a screen 1.5 maway. Find the angular separation between the two third-order bright fringes (away from the central maximum) in the pattern if a 575 nm light source is used. [T/I=2]

You have a polarizer at 90°, followed by another at 0° and a third at 45° How much light is blocked? A. 100 B. 25 C. 75 D. 50

Wave Superposition/Interference: Use the principle of wave superposition to explain how a propagated wave with a fixed amplitude may increase in amplitude AND decrease in amplitude. Relate this principle to explain how Thomas Young's double-slit experiment proved the wave nature of light.

Consider the following properties of light: I. rectilinear propagation II. Reflection III. Refraction IV. diffraction V. partial reflection-refraction Which of these properties did Huygens have trouble explaining with his theory of light? a. I only b. IV only c. I and IV only d. I and V only

Young's experiment was instrumental in supporting Huygens' wave theory of light. Explain which two conditions Young satisfied in his experiment that were not adequately done before. Describe how he achieved these two conditions. [C=2]

You observe a rocket moving away from you. Compared to the passage of time measured by the watch on your wrist, is the passage of time on the rocket's clock will appear as running with the same speed as while on earth surface faster unpredictable as the speed of the rocket is not mentioned. slower

What is the wavelength, in meters, of a wave with a velocity of 132.9 m/s and a frequency of 134.9 Hz? Round to the nearest tenth. Don't include units.

The diagram above represent the interference pattern produced by Young's Experiment. The row marked A would be the central bright area. What would we call the row labeled C? 2nd order bright fringe 3rd order bright fringe 1st order bright fringe 5th order bright fringe

A film of soapy water (n = 1.33) on top of a sheet of crown glass (n = 1.52) has a thickness of 196 nm. What wavelength is most strongly reflected if it is illuminated perpendicular to its surface? (This is the apparent color of the soapy film.) nm

Young's double slit experiment is one of the quintessential experiments in physics. The availability of low cost lasers in recent years allows us to perform the double slit experiment rather easily in class. Your professor shines a green laser (560 nm) on a double slit with a separation of 0.111 mm. The diffraction pattern shines on the classroom wall 3.5 m away. Calculate the fringe separation between the second order and central fringe.

Working in lab class you shine a green laser (5.40 x 10² nm) onto a double slit with a separation of 0.320 mm. What is the distance between the first and second dark fringe that shines on the wall 1.80 m away?

While direct sunlight is unpolarized, light coming from a clear blue sky is linearly polarized to some extent. Assume all the light from the blue sky is linearly polarized in the same direction. Suppose a school library has installed skylight windows in the ceiling of the atrium to allow for natural lighting. The windows are polarized so that the intensity of the light, after passing through the windows, is 62% of the original intensity of the light from the blue sky. What is the angle between the polarization direction of the light and the polarization axis of the windows?

You've entered the Great Space Race. Your engines are hearty enough to keep you in second place. While racing, the person in front of you begins to have engine troubles and turns on his emergency lights that emit at a frequency of 5.570 × 10^14 Hz. If the person in front of you is traveling 2612 km/s faster than you when he turns on his lights, what is the frequency of the emergency lights that you observe when it reaches you in your spaceship? (Enter your answer to four significant figures.)

In a Newton's Ring experiment, the diameter of the 20th dark ring was found to be 5.82 mm and that the 10th ring 3.36 mm . If the radius of the planoconvex lens is 1 m, calculate the wavelength of light used

Find a lighted bare light bulb (in your room or a streetlight, etc). Move around and notice that you can see the lighted bulb from many directions. 1) Now cut a narrow slit along the dashed line below. Hold the paper at arm's length between your eye and the bulb, i.e., you should not look from the edges of the paper. Can you still see the bulb from many directions? Where must you place your eye so you can see the bulb?

In a double-slit experiment, it is observed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent maxima when the slit separation is cut in half? It increases to 4.0 cm. It decreases to 0.50 cm. It decreases to 0.25 cm. It increases to 2.0 cm. None of these choices are correct.

A compound microscope has a magnifying power 48. The focal length of its eye-piece is 5cm. If final image is formed at least distance of distinct vision (25cm) then magnification of objective lens is

You shine an orange laser (632 nm) on a double slit in an experiment you perform in your physics lab. Measuring with a protractor you see that the interference pattern makes the first fringe at 17.00 with the horizontal. What is the separation between the slits?

From what distance can these lightbulbs be marginally resolved by a small telescope with a 6.0-cm -diameter objective lens? Assume that the lens is limited only by diffraction and λ = 600 nm. Express your answer with the appropriate units.

Determine the refractive index of a piece of glass (n1) if the angle of incidence (angle 1) = 30 degrees. The angle of refraction (angle 2) = 37 degrees and the index of refraction of air (n2) = 1.0003. Round your answer to 3 decimal places. n1 = 1.0003 x sin (angle 2)

What is occurring when a light wave goes through a pane of glass in a window? A. absorption B. transmission C. constructive interference D. destructive interference