Optics Question 1013

Question: For constructive interference to take place between two monochromatic light waves of wavelength l, the path difference should be

[MNR 1992; UPSEAT 2001]

Options:

A) (2n1)λ4

B) (2n1)λ2

C) nλ

D) (2n+1)λ2

Show Answer

Answer:

Correct Answer: C

Solution:

For constructive interference path difference is even multiple of λ2 .



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