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When two waves of almost equal frequenci...

When two waves of almost equal frequencies `v_(1)` and `v_(2)` reach at a point simultaneously, the time interval between successive maxima is

A

`upsilon_(1)+upsilon_(2)`

B

`upsilon_(1)-upsilon_(2)`

C

`1/(upsilon_(1)+upsilon_(2))`

D

`1/(upsilon_(1)-upsilon_(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
When two waves of almost equal frequencies `upsilon_(1) and upsilon_(2)` reach at a point simultaneously, beats are produced.
Beat frequency,`upsilon_(beat)=upsilon_(1)+upsilon_(2)`
Time interval between successive maxima
`=1/(upsilon_(beat))=1/(upsilon_(1)-upsilon_(2))`
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