(b) A B FIGURE 7 FIGURE 7 shows two paths of coherent lights from points A and B that produce an interference pattern at point C. Determine whether it is a constructive or destructive interference if AC and BC are 2.2 h and 5.7 2 respectively.

(b) A B FIGURE 7 FIGURE 7 shows two paths of coherent lights from points A and B that produce an interference pattern at point C. Determine whether it is a constructive or destructive interference if AC and BC are 2.2 h and 5.7 2 respectively.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 9CQ: Figure 24.26 shows the interference pattern of two radio antennas broadcasting the same signal....

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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

(b)
A
B
FIGURE 7
FIGURE 7 shows two paths of coherent lights from points A and B that
produce an interference pattern at point C. Determine whether it is a
constructive or destructive interference if AC and BC are 2.2 A and 5.7 1
respectively.

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