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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`.
If `I_(0) prop A^(2)`, then the value of maximum intensity,is

A

`2I_(0)`

B

`3 I_(0)`

C

`4 I_(0)`

D

`9 I_(0)`

Text Solution

Verified by Experts

The correct Answer is:
D
At `t=0,I_(max) prop (1+2)^(2) A^(2)=9A^(2) :. I_(max) = 9I_(0)`.
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