A : The pattern and position of fringes always remain same even after the introduction of transparent medium in a path of one of the slits of young.s experiment. R : The central fringe bright or darkness is independent of the initial phase difference between the two coherence sources.

A : The pattern and position of fringes always remain same even after

1.	A : The pattern and position of fringes always remain same even after the introduction of transparent medium in a path of one of the slits of young.s experiment. R : The central fringe bright or darkness is independent of the initial phase difference between the two coherence sources.
Answer» Both A and R are true and R is the CORRECT EXPLANATION of A Both A and R are true and R is not the correct explanation of A A is true and R is false Both A and R are false Answer :D

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A : The pattern and position of fringes always remain same even after the introduction of transparent medium in a path of one of the slits of young.s experiment. R : The central fringe bright or darkness is independent of the initial phase difference between the two coherence sources.

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