Optics Question 1098
Question: In a Young’s double slit experiment, the fringe width will remain same, if (D = distance between screen and plane of slits, d = separation between two slits and l = wavelength of light used)
[Bihar MEE 1995]
Options:
A) Both l and $ D $ are doubled
B) Both d and $ D $ are doubled
C) D is doubled but d is halved
D) l is doubled but d is halved
Show Answer
Answer:
Correct Answer: B
Solution:
$ \beta =\frac{\lambda D}{d} $
