Optics Question 1093

Question: Two sources give interference pattern which is observed on a screen, D distance apart from the sources. The fringe width is 2w. If the distance D is now doubled, the fringe width will

[MP PET 1997]

Options:

A) Become w/2

B) Remain the same

C) Become w

D) Become 4w

Show Answer

Answer:

Correct Answer: D

Solution:

$ \beta \propto D $



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