When a ray of light travles from an optically more denser medium to an optically less denser medium, the angle of incidence is always _____ than the angle of refraction.

When a ray of light travels from an optically less denser medium to an optically more denser medium, the angle of incidence is always less than angle of refraction.

When a ray of light travels from optically denser medium to optically rarer medium, it always bends towards the normal.

When a ray of light travels obliquely from a rarer medium to a denser medium, it bends away from the normal.

When a ray of light from air enters a denser medium, it :

A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incidence is :

A ray of light passes from vaccum into a medium of refractive index n. If the angle of incidence is twice the angle of refraction, then the angle of incidence is

When a beam of light goes from denser medium ( mu_d ) to rarer medium ( mu_r ), then it is generally observed that magnitude of angle of incidence is half that of angle of refraction. Then magnitude of incident angle will be-(here mu=mu_d //mu_r )

When a light ray from a rarer medium is refracted into a denser medium, its