Subject :NSO Class : Class 10
Two rays of light are incident normally on water.
Both the rays pass through glass slabs of different
heights, as shown in the figure. Refractive indices
of water and glass are 4/3 and 3/2 respectively.
If c is the speed of light in vacuum, then the time
difference between the rays of light to reach the
bottom is
A
B
C
D
please answer