An observer starts moving with uniform acceleration a toward a stationary sound source emitting a whistle of frequency n. As the observer approaches source, the apparent frequency, heard by the observer varies with time as
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
For observer approaching a stationary source
and given 
⇒ ⇒ 
this is the equation of straight line with positive intercept n and positive slope 
.
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