Question

The refractive index of glass plate is 3/2. then the
correct thickness of glass plate that will permit
the same number of wavelengths as that by an 18 CM
long column of water is (mew w=4/3).
1) 12 cm 2) 16cm
3) 18cm
4) 24cm​

Answer 1

Answer:

Hy dude option C is correct..

Hope it helps!!