Find the value of critical angle for a material of refractive index `sqrt(3)`.

What is critical angle for a material of refractive index sqrt(2) ?

What is the critical angle for materail of refractive index sqrt 2 ?

The critical angle for diamond (refractive index = 2) is

The critical angle for diamond (refractive index = 2) is

Find the critical angle for a glass-water interface,if refractive index of glass 3//2 and that of water is 4//3 .