A speeding motorcyclist sees trafic jam ahead of him. He slows down to – McqOptions

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1.	A speeding motorcyclist sees trafic jam ahead of him. He slows down to 36 km/hour. He finds that traffic has eased and a car moving ahead of him at 18 km/hour is honking at a frequency of 1392 Hz. If the speeds of sound is 343 m/s, the frequency of the honk as heard by him will be :
A.	1332 Hz
B.	1372 Hz
C.	1412Hz
D.	1464Hz
Answer» D. 1464Hz

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