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

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

The phase difference of the interfering light at point P is

A

`(2pi)/(lambda) d cos theta`

B

`(2pi)/(lambda) d. cos^(3) theta`

C

`(2pi)/(lambda) d cos^(2) theta`

D

`(2pi)/(lambda)(d)`

Text Solution

Verified by Experts

The correct Answer is:
A
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