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A source of frequency n and an observer ...

A source of frequency n and an observer are moving on a straight line with velocities a and b respectively. If the source is ahead of the observer and if the medium is also moving in the direction of their motion with velocity c, (the velocity of sound being V), then the apparent frequency of the sound heard by the observer would be -

A

`((V-c +b)/(V -c + a))n`

B

`((V+c +b)/(V +c + a))n`

C

`((V-c-b)/(V -c - a))n`

D

`((V+c-b)/(V +c - a))n`

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The correct Answer is:
A
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MOTION-SOUND WAVES-Exercise - 1
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  2. If an observer is moving with uniform velocity v to wards a stationary...

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