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

Question

Dr. Abubacker · Accepted Answer

(b) For observer approaching a stationary source
$n^{'} = \frac{v + v_{0}}{v}.n$ and given $v_{0} = at \Rightarrow n^{'} = \left( \frac{an}{v} \right)t + n$
This is the equation of straight line with positive intercept $n$ and positive slope $\left( \frac{n}{v} \right)$

Q. 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

Explanation

Reviewed by Dr. Abubacker

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