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In the arrangement shown ,a screen is pl...

In the arrangement shown ,a screen is placed normal to the joining the two point coherent sources `S_(1) andS_(2)` .The interference pattern consists circles. `lambda` is the wavelength of light `(D gt gt d)`.

The radius of the `n^(th)` bright ring is

A

`(nlambdaD)/d`

B

`d(1-(nlambdaD)/d)`

C

`Dsqrt(1-(nlambda)/d)`

D

`Dsqrt(2(1-(nlambda)/d))`

Text Solution

Verified by Experts

The correct Answer is:
D
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