The figure shows the light intensity on a screen 2.5 meters behind an aperture. The aperture is illuminated with light of wavelength 600 nm. (a) The aperture is a double slit, not a single slit. How can you tell? (b) What is the spacing between the slits? (c) Why does the intensity decrease as you move away from the central maximum? Intensity m 0 1 2 3 4 5 ^x (cm)

The figure shows the light intensity on a screen 2.5 meters behind an aperture. The aperture is illuminated with light of wavelength 600 nm. (a) The aperture is a double slit, not a single slit. How can you tell? (b) What is the spacing between the slits? (c) Why does the intensity decrease as you move away from the central maximum? Intensity m 0 1 2 3 4 5 ^x (cm)

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter35: Diffraction And Interference

Section: Chapter Questions

Problem 56PQ

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

100%

The figure shows the light intensity on a
screen 2.5 meters behind an aperture. The
aperture is illuminated with light of wavelength
600 nm.
(a) The aperture is a double slit, not a single
slit. How can you tell?
(b) What is the spacing between the slits?
(c) Why does the intensity decrease as you
move away from the central maximum?
Intensity
wm.
W
0 1 2 3 4 5
x (cm)

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