An observer is moving towards the stationary source of sound, then [

1.	An observer is moving towards the stationary source of sound, then [MH CET 2001]
A.	Apparent frequency will be less than the real frequency
B.	Apparent frequency will be greater than the real frequency
C.	8400 nm
D.	Only the quality of sound will change
Answer» C. 8400 nm

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