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A source of frequency 'f' is stationary ...

A source of frequency 'f' is stationary and an obsercer starts moving towards it at t=0 with constant small acceleration. Then the variation of observed frequency 'f' registered by the observer with time is best represented as

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Text Solution

Verified by Experts

The correct Answer is:
A
After a time t, velocity of observer `V_(0)=at`
`:. f_(0)=((V+V_(0))/V)f_(s), =((V+at)/V) f_(s)`, which is a straight line graph of positive slope.
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