2. Light passes through a 0.12mm-wide slit and forms a diffraction pattern 1m behind the slit, the width of central maximum is 0.85cm, what is the wavelength of light? (a · sin0 = m2, sin0 z y/L, where y is coordinate of the mth dark fringe on the screen, and L = 1 in this case) %|

2. Light passes through a 0.12mm-wide slit and forms a diffraction pattern 1m behind the slit, the width of central maximum is 0.85cm, what is the wavelength of light? (a · sin0 = m2, sin0 z y/L, where y is coordinate of the mth dark fringe on the screen, and L = 1 in this case) %|

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter24: Wave Optics

Section: Chapter Questions

Problem 46P: White light is incident on a diffraction grating with 475 lines/mm. (a) Calculate the angle r2 to...

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What is the following wavelength?

2. Light passes through a 0.12mm-wide slit and forms a diffraction pattern 1m
behind the slit, the width of central maximum is 0.85cm, what is the wavelength of
light? (a · sin0 = m2, sin0 z y/L, where y is coordinate of the mth dark fringe on
the screen, and L = 1 in this case)
%|

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A plane monochromatic light wave is incident on a double slit as illustrated in Figure 37.1. (i) As the viewing screen is moved away from the double slit, what happens to the separation between the interference fringes on the screen? (a) It increases, (b) It decreases, (c) It remains the same, (d) It may increase or decrease, depending on the wavelength of the light. (e) More information is required, (ii) As the slit separation increases, what happens to the separation between the interference fringes on the screen? Select from the same choices.
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