Question
How does the fringe width of interference fringes change, when whole apparatus of Young's experiment is kept in a liquid of refractive index 1.3?
Solution
The fringe width in a Young's double-slit experiment is given by
The fringe width is not affected if the whole apparatus is placed in a liquid of refractive index 1.3.
The fringe width is not affected if the whole apparatus is placed in a liquid of refractive index 1.3.