A sound wave of frequency f travelling horizontally to the right is reflected by a large vertical plane surface moving to left with a speed v. There is a detector (1) attached on the surface and another detector (2) fixed on ground. If the speed of sound in the medium is c, then the difference in the frequency received by detector 2 after being reflected from the surface and the frequency received by detector 1 is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
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