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) $ (2n-1)\frac{\lambda }{4} $
B) $ (2n-1)\frac{\lambda }{2} $
C) $ n\lambda $
D) $ (2n+1)\frac{\lambda }{2} $
Show Answer
Answer:
Correct Answer: C
Solution:
For constructive interference path difference is even multiple of $ \frac{\lambda }{2} $ .
