Determine refractive index of a substance if critical angle is `45^@`.

Determine the refractive index of a substance if cirtical angle is 45^@ .

Determine the refractive index of benzene if the critical angle of benzene with respect to air is 42^(@) . (AS_(1))

Determine the refractive index of benzene if the critical angle of benzene with respect to air is 42^(@) . (AS_(1))

Derive relation between refractive index and critical angle.

Refractive index of glass is 1.5 find critical angle for glass.

Derive the relation between refractive index of the medium and critical angle.