A ray of light travelling in air is incident at ` 45^(@)` on a medium of refractive index ` sqrt(2)`. The angle of refractive in the medium is

Determine the value of the angle of incidence for a ray of light travelling from a medium of refractive index mu_1 = sqrt(2) into the medium of refractive index mu_2 = 1 , so that it just grazes along the surface of separation.

A ray of light is incident on a medium of refractive index sqrt(2) at an angle of incidence of 45^(@) . The ratio of the width of the incident beam in air to that of the refracted beam in the medium is

AN unpolarised beam of light is incident at the polarising angle on the surface of a transparent medium of refractive index 1.6. The angle of refraction in the medium is

A ray of light travels from a medium of refractive index n_(1) to a medium of refractive index n_(2) . If angle of incidence is i and angle of refraction is r, than (sin i)/(sin r) is equal to

A ray of light travelling in a transparent medium of refractive index mu , falls on a surface separating the medium from air at an angle of incidence of 45^(@) . For which of the following value of mu the ray can undergo total internal reflection ?