Home Physics Wave and Sound Mix A police car moving at 22 m/s, chases a moto…
Physics Wave and Sound Mix MCQ (Single Correct)

A police car moving at 22 m/s, chases a motorcyclist. The police man sounds his horn at 176 Hz, while both of them move towards a stationary siren of frequency 165 Hz. Calculate the speed of the motorcycle, if it is given that he does not observes any beats

A
33 m/s
B
22 m/s
C
Zero
D
11 m/s

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Text Solution

Verified by Experts
The correct answer is:
B

= Frequency of the police car horn observer heard by motorcyclist

= Frequency of the siren heard by motorcyclist.

v 2 = Speed of motor cyclist

.

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