An engine is moving with uniform speed along a circular track emi… - Vidyadip

MCQ

An engine is moving with uniform speed along a circular track emitting a sound of frequency $400\, Hz$ as shown in the figure. Speed of engine is $30\, m/sec$ and speed of sound is $330\, m/sec$. An observer is standing inside the track. Maximum frequency observed by the observer is

✓
Less than $440\, Hz$
B
Greater than $440\, Hz$
C
Equal to $440\, Hz$
D
Equal to $400\, Hz$

✓

Answer

Correct option: A.

Less than $440\, Hz$

a

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