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A car blowing a horn of frequency 350 Hz...

A car blowing a horn of frequency 350 Hz is moving normally towards a wall a speed of 5 m/s The beat frequency heard by a person standing between the car and wall is (speed of sound in air =350 m/s )

A

0

B

3.5 Hz

C

5 Hz

D

10 Hz

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A
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TARGET PUBLICATION-WAVE MOTION -MCQ 7.1
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