A)
B)
C)
D)
Correct Answer: B
Solution :
\[\upsilon =\]velocity of sound. \[{{f}_{1}}=\frac{\upsilon }{\upsilon -u}f\] When source moves towards stationary observer. \[f=\frac{\upsilon }{\upsilon +u}f\] When source moves away from observer. \[\therefore \] \[{{f}_{1}}<f\] f does not depend on time elapse (t).You need to login to perform this action.
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