You have a diffraction grating with two thin slits. You set it up outside in the sunlight.The white sunlight that passes through the two slits shines on a nearby wall. You seea bright white line, surrounded on the left and right by two rainbows. Explain whythis happens, including why there is a central bright line, and also explain the orderof the colors in the rainbow pattern (i.e., which is closest to the white spot, and whichis furthest). (Recall that the order of colors in a rainbow can be remembered by theacronym ROY G. BIV, where “T" stands for indigo).

when the sunlight passes through the slits we do observe interference pattern modulated by the…

Answered: You have a diffraction grating with two…

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 89AP: Monochromatic light of wavelength 530 nm passes through a horizontal single slit of width 1.5 m in...

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Monochromatic light is incident on a pair of slits that are separated by 0.200 mm. The screen is 2.50 m away from the slits. a. If the distance between the central bright fringe and either of the adjacent bright fringes is 1.67 cm, find the wavelength of the incident light. b. At what angle does the next set of bright fringes appear?
Suppose Youngs double-slit experiment is performed in air using red light and then the apparatus is immersed in water. What happens to the interference pattern on the screen? (a) It disappears. (b) The bright and dark fringes stay in the same locations, but the contrast is reduced. (c) The bright fringes are closer together. (d) The bright fringes are farther apart. (e) No change happens in the interference pattern.
Monochromatic light of wavelength 530 nm passes through a horizontal single slit of width 1.5 m in an opaque plate. A screen of dimensions 2.0m2.0m is 1.2 m away from the slit. (a) Which way is the diffraction pattern spread out on the screen? (b) What are the angles of the minima with respect to the center? (c) What are the angles of the maxima? (d) How wide is the central bright fringe on the screen? (e) How wide is the next bright fringe on the screen?
For fun, a student constructs a three-slit interference experiment. If the light from each of the three slits arrives in phase at the central maximum, then how will the intensity I compare to the intensity I1 from a single slit? a. 3I1 b. 9I1 c. I1 d. 6I1
The wings of tiger beetles are colored by interference due to thin cuticle-like layers. In addition, these layers are arranged in patches that are 60 mm across and produce different colors.The color you see is a pointillistic mixture of thin-film interference colors that varies with perspective. Approximately what viewing distance from a wing puts you at the limit of resolving the different colored patches according to Rayleigh’s criterion? Use 550 nm as the wavelength of light and 3.00 mm as the diameter of your pupil.
Two vertical slits of width 2.13 μm are separated by 24.4 μm and are illuminated by a laser with wavelength 514 nm. If a screen is placed at a distance of 1.96 m and we look at a location 23.8 cm horizontally from the center of the screen, what is the percentage of the single-slit intensity that we will see? [Include single-slit diffraction for this problem]
If you gently spread the barbs on a feather and look through it at a light source, you’ll see a clear pattern of rainbows due to diffraction by the feather’s barbules, which are small, evenly spaced structures visible in the micrograph as shown. If the barbules are spaced at 50 per mm, a typical value, what is the first-order diffraction angle for blue light of 450 nm and red light of 650 nm?
For fun, a student constructs a four-slit interference experiment. If the light from each of the four slits arrives in phase at the central maximum, then how will the intensity I compare to the intensity I1 from a single slit? a. I1 b. 4I1 c. 8I1 d. 16I1
A physics professor wants to perform a lecture demonstration of Young's double-slit experiment for her class using the 633-nm light from a He-Ne laser. Because the lecture hall is very large, the interference pattern will be projected on a wall that is 6 m from the slits. For easy viewing by all students in the class, the professor wants the distance between the m=0 and m=1 maxima to be 50 cm. What slit separation is required in order to produce the desired interference pattern?
A student installs a double-slit assembly 1.65 m from a white screen. The slits are separated by 0.0570 mm. a) Suppose the student shines a beam of yellow light, with a wavelength of 586 nm, toward the slit assembly, and this makes an interference pattern on the screen. What distance (in cm) separates the zeroth-order and first-order bright fringes (a.k.a. maxima)? b) Now suppose that blue light (with ? = 415 nm) is used instead. What distance (in cm) will now separate the second-order and fourth-order bright fringes?
Light containing the wavelengths λ₁ = 540 nm (green) and λ₂ = 450 nm (blue) falls on a diffraction grating with 400 slits/mm. The interference pattern is observed on a square screen 6 m on a side, 1.2 m away from the screen (which is aligned with the center of the screen). What is the TOTAL number of interference maxima that can be observed on the screen from (a) green light? (b) blue light? (c) In this situation, the greatest distance existing between two maxima of the same order, one with blue light and one with green light, is closer to ?
You are recreating Young's double-slit experiment in lab with red laser light ( λ=700 nm) as a source. You perform the experiment once with a slit separation of 4.5 mm and obtain an interference pattern on a screen a distance 3.0 m away. You then change the slit separation to 9.0 mm and perform the experiment again. In order to maintain the same interference pattern spacing as the first experiment, What should the new screen-to-slit distance be?

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You have a diffraction grating with two thin slits. You set it up outside in the sunlig The white sunlight that passes through the two slits shines on a nearby wall. You s a bright white line, surrounded on the left and right by two rainbows. Explain w