Two identical sources A and B emit in-phase plane radio waves with frequency 3.17E4 Hz and intensity 1.83E2 W/m2. A detector placed at location P closer to source B than source A detects a destructive interference. What is the minimum value of the path difference |AP–BP| (in m)?

Two identical sources A and B emit in-phase plane radio waves with frequency 3.17E4 Hz and intensity 1.83E2 W/m2. A detector placed at location P closer to source B than source A detects a destructive interference. What is the minimum value of the path difference |AP–BP| (in m)?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Wave Optics

Section: Chapter Questions

Problem 39P

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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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Two identical sources A and B emit in-phase plane radio waves with frequency 3.17E4 Hz and intensity 1.83E2 W/m². A detector placed at location P closer to source B than source A detects a destructive interference. What is the minimum value of the path difference |AP–BP| (in m)?

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