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A source of sound is travelling towards ...

A source of sound is travelling towards a stationary observer. The frequency of sound heard by the observer is of three times the original frequency. The velocity of sound is v m / sec . The speed of source will be

A

`(2)/(3)upsilon`

B

`upsilon`

C

`(3)/(2)upsilon`

D

`3upsilon`

Text Solution

Verified by Experts

The correct Answer is:
A
`v_(o)=0`
`f.=f((v)/(v-v_(s)))implies3f=f((v)/(v-v_(s)))`
`implies 3v-3v_(s)=vimpliesv_(s)=(2v)/(3)`.
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