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If two waves having amplitudes A and 0.39A are out of phase with each other by , then what is the amplitude (in units of A) of the resultant 2 superposition of these waves? Type your answer...

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter15: Sound

Section: Chapter Questions

Problem 28A

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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

If two waves having amplitudes A and 0.39A are
out of phase with each other by , then what is the
amplitude (in units of A) of the resultant
2
superposition of these waves?
Type your answer...

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