A plane wavefront is made incident at an angle of `30^@` on the surface of the glass . Calculate the angle of refraction if refractive index of glass is 1.5 .

The refractive index of glass is minimum for

The refractive index of glass is minimum for

A ray of light is incident on a glass slab making an angle of 30^@ with the surface. The angle of refraction in glass, if the refractive index of flass is 1.6 , is

Light is incident on a glass slab making an angle of 30^@ with the surface. Calculate the angle of refraction in glass and velocity of light in glass. Given mu= 1.5 , Va = 3 xx 10^8 m//s .

A ray of light is incident on a glass slab making an angle of 25^@ with the surface. Calculate the angle of refraction in glass and velocity of light in glass, if the, refractive index of glass and velocity of light are 1.5 and 3 xx 10^8 m/s respectively.

A paralel beam of monochromatic light is incident on a glass slab at an angle of incidentce 45^@ . Find the ratio of width of beam in glass to that in air ( If refractive index of glass is 1.5).

A ray of light travelling from first medium is incident at an angle of 30^(@) on the second medium and refracted at an angle of 45^(@) . Find refractive index of the second medium with respect to first medium and angle of emergence.

An parallel beam of monochromatic light is incident on a glass slab at an angle of incidence 60^@ . Find the ratio of the width of the beam in glass to that in air, if the refractive index of glass is 1.5.

If a ray of light propagating in air strikes a glass slab at an angle of 30^(@) with the surface of the slab, the angle of refraction is

When a plane wavefront is incident on a double convex lens, the refracted wavefront is