Optics Question 1137
Question: In Young’s double-slit experiment the fringe width is b. If entire arrangement is placed in a liquid of refractive index n, the fringe width becomes
[KCET 2003]
Options:
A) $ \frac{\beta }{n+1} $
B) nb
C) $ \frac{\beta }{n} $
D) $ \frac{\beta }{n-1} $
Show Answer
Answer:
Correct Answer: C
Solution:
$ \beta =\frac{\lambda D}{d} $ and $ \lambda \propto \frac{1}{\mu } $
