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A source of sound of frequency 90 vibrat...

A source of sound of frequency 90 vibrations/ sec is approaching a stationary observer with a speed equal to 1/10 the speed of sound. What will be the frequency heard by the observer

A

80 vibrations/ sec

B

90 vibrations/ sec

C

100 vibrations/ sec

D

120 vibrations/ sec

Text Solution

Verified by Experts

The correct Answer is:
C
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