Question 2: Suppose you shot a green laser beam of diameter 1 mm and wavelength 532 nm to the moon. What is the minimum size of the laser beam on the surface of the moon? The actual size of beam would be much bigger than you calculated because the laser beam is usually not collimated.

Question 2: Suppose you shot a green laser beam of diameter 1 mm and wavelength 532 nm to the moon. What is the minimum size of the laser beam on the surface of the moon? The actual size of beam would be much bigger than you calculated because the laser beam is usually not collimated.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter3: Interference

Section: Chapter Questions

Problem 86AP: The movable mirror of a Michelson interferometer is attached to one end of a thin metal rod of...

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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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