The critical angle of incidence in a glass slab placed in air is `45^(@)`. What will be yhe critical angle when the glass slab is immersed in water of refractive index `1.33` ?

The critical angle of incidence in a glass slab placed in air is 45^@ . What will be be the critical angle when the glass slab is immersed in water of refractive index 1.33 ?

When a glass slab is placed in air, its critical angle is 30^(@) . What will be the critical angle when it is immersed in water whose refractive index is 1.33?

A glass slab has a critical angle of 30^(@) when placed in air. What will be the criticle angle when it is placed in liquid of refractive index 6/5 index?

The ray of light is incident at an angle of 45^(@) on a glass surface. What will be the critical angle of the glass when placed in air if the light ray is deviated by 12^(@) ?

The critical angle of a medium with respect to air is 45^(@) . The refractive index of medium is

A parallel beam of monochromatic light is incident on a glass slab at an angle of incidence 60^(@) . Find the ratio of width of the beam in the glass to that in the air if refractive index of glass is 3//2 .

The refractive index of water is 4 / 3 and that of glass is 5/3. What will be the critical angle for the ray of light entering water from the glass

The critical angle for refraction from glass to air is 30° and that from water to air is 37° . Find the critical angle for refraction from glass to water