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Two point sources X and Y emit waves of ...

Two point sources X and Y emit waves of same frequency and speed but Y lags in phase behind X by `2 pid` radian. If there is a maximum in direction D, the distance XO using n as an integer is given by

A

`lambda/2(n-l)`

B

`lambda(n+l)`

C

`lambda/2(n+l)`

D

`lambda(n-l)`

Text Solution

Verified by Experts

The correct Answer is:
B
`phi=(2pi)/lambda Deltax-2pil`
`2pin=(2pi)/lambda(OX)-2pil`
`OX=lambda(n+l)`
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