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

(1) 33 m/s

(2) 22 m/s

(3) Zero

(4) 11 m/s

(2) n1 = Frequency of the police car horn observer heard by motorcyclist

n2 = Frequency of the siren heard by motorcyclist.

v2 = Speed of motor cyclist

n1 = $\frac{330-v}{330-22}×176 ; {n}_{2}=\frac{330+v}{330}×165$

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Difficulty Level:

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