Optics Question 1079

Question: In Young’s double slit experiment, if L is the distance between the slits and the screen upon which interference pattern is observed, x is the average distance between the adjacent fringes and d being the slit separation. The wavelength of light is given by

[MP PET 1993]

Options:

A) xdL

B) xLd

C) Ldx

D) 1Ldx

Show Answer

Answer:

Correct Answer: A

Solution:

We know that fringe width β=Dλd

x=Lλdλ=xdL



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