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Assertion (A) : Light from two coherent ...

Assertion (A) : Light from two coherent sources is reaching the screen. If the path difference at a point on the screen for yellow light is `3 lambda//2`, then the fringe at the point will be coloured.
Reason (R ) : Two coherent sources always have constant phase relationship

A

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'

B

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

C

A' is true and 'R' is false

D

A' is false and 'R' is true

Text Solution

Verified by Experts

The correct Answer is:
D
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