Statement I: Fringe width depends upon refractive index of the medium.
Statement II: Refractive index changes optical path of ray of light forming fringe pattern.

Options

A. Statement-I is true and Statement-II is true and Statement-II is the correct explanation of Statement-I.
B. Statement-I asnd Statement-II are true but Statement-II is not the correct explanation of Statement-I
C. Statement-I is true, Statement-II is false
D. Statement-I is false, Statement-II is true.

Answer

B

Explanation

`beta = (lambda D)/(d) but lambda= (1)/(mu)`