A source of sound of frequency n is moving towards a stationary observer with a speed S. If the speed of sound in air is V and the frequency heard by the observer is \[{{n}_{1}}\], the value of \[{{n}_{1}}/n\] is [MP PMT 1997]

A source of sound of frequency n is moving towards a stationary observ

1.	A source of sound of frequency n is moving towards a stationary observer with a speed S. If the speed of sound in air is V and the frequency heard by the observer is \[{{n}_{1}}\], the value of \[{{n}_{1}}/n\] is [MP PMT 1997]
A.	\[(V+S)/V\]
B.	\[V/(V+S)\]
C.	\[3000\,\,{AA}\]
D.	\[V/(V-S)\]
Answer» E.

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A source of sound of frequency n is moving towards a stationary observer with a speed S. If the speed of sound in air is V and the frequency heard by the observer is \[{{n}_{1}}\], the value of \[{{n}_{1}}/n\] is [MP PMT 1997]

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