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A detector at x=0 receives waves from th...

A detector at `x=0` receives waves from three sources each of amplitude `A` and frequencies `f + 2,f` and `f-2`.
The time at which intensity is maximum, is

A

`t=0,1//4,1//2,3//4,…sec`

B

`t=1//6,1//3,2//3,5//6,…sec`

C

`t=0,1//2,3//2,5//2,..sec`

D

`t=1//2,1//4,1//6,1//8,…sec`

Text Solution

Verified by Experts

The correct Answer is:
A
`sin 4pi t=0rArr t=(n)/(4) :. t=0,(1)/(4),(1)/(2),(3)/(4)....` (point of maximum intensity).
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