A ray of light AO in vacuum is incident on a glass slab at angle `60^(@)`and refracted at angle `30^(@)` along OB as shown in the figure.The optical path length of light ray from A to B is

A ray of light falls on a glass slab at an incident angle of 45^(@) and refracted at angle of 30^(@) . What is the refractive index of the glass with respect to air ?

A ray of light falls on a glass slab at an incident angle of 45^(@) and refracted at angle of 30^(@) . What is the measure of the angle of emergence 'e' ?

A ray of light is incident on a glass slab at an angle of 45^(@) . If refractive index of glass be 1.6, what is the angle of refraction ?

A ray of light falls on a material body at an incident angle 60^(@) and refracted at angle 30^(@) . What is the refractive index of the material?

A ray of light falls on a material body at an incident angle of 30^(@) and refracted at angle 60^(@) . What is the refractive index of the material?

A ray of light falls on a material body at an incident angle 60^(@) and refracted at angle 30^(@) . What is the measure of the angle of emergence 'e'?

A ray of light is incident on a glass slab of refractive index 1.5, making an angle of 40^(@) with the surface. The angle of refraction in glass is

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

A ray of light is incident on a galss slab making on angle of 30^(@) with the surface . If the angle of refraction in glass is 33^(@) , the angle of deviation of the ray during its passage through the galss slab is