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Two monochromatic coherent point sources...

Two monochromatic coherent point sources `S_(1)` and `S_(2)` are separated by a distance L. Each sources emits light of wavelength `lambda`, where `L gt gt lambda`. The line `S_(1) S_(2)` when extended meets a screen perpendicular to it at point A. Then

A

The interference frings are circular in shape

B

Interference fringes are straight lines perpendicualr to line `S_(1)S_(2)`

C

On the point A intensity is maximum if `L = n lambda` ( n is an integar )

D

Point A is always an intensity maximum for any separtion L

Text Solution

Verified by Experts

The correct Answer is:
A, D
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