Answered: 3. Monochromatic light falling on a…

3. Monochromatic light falling on a slits 2.2×106 m wide. If the angle between the first dark fringes on either side of the central maximum is 30 degrees, wi is the wavelength of light used?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter38: Diffraction Patterns And Polarization

Section: Chapter Questions

Problem 38.13P

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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.

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3. Monochromatic light falling on a slits 2.2x10-6 m
wide. If the angle between the first dark fringes on
either side of the central maximum is 30 degrees, what
is the wavelength of light used?

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