When a ray of light passes from Medium 1 to Medium 2, it bends away from the normal. Which of the two is the optically denser medium ?

What is optically denser and optically rarer medium ?

When a ray of light travel from one medium to other then the physical quantity which does not change is

When light is refracted into a medium

A ray of light enters in denser medium from rarer medium. Speed of light in rarer medium is double than that in denser medium, what is the critical angle for total internal reflection ?

The medium in which the speed of light is half of the speed in air, if light travels from such medium to air, then for what angle of incidence light will do total internal refelction ?

A ray of light passes from a medium A having refractive index 1.6 to the medium B having refractive index 1.5. The value of critical angle of medium A is ....

When a ray of light enters into the medium of refractive index of mu , angle of refraction is half of angle of incidence so angle of incidence = ......

As shown in figure a ray of light in air is incident at 30^@ on a medium and proceeds ahead in the medium. The refractive index of this medium varied with distance y as given by n(y) = 1.6 + (0.2)/(y +1)^(2) where y is in cm. What is the angle formed by the ray with the normal at a very large depth ?

Fig. shows a surface XY separating two transparent media, medium 1 and medium 2. Lines ab and cd represent wavefronts of a light wave travelling in medium 1 and incident on XY. Line ef and gh represent wavefront of the light wave in medium 2 after rafraciton. Light travel as a

Fig. shows a surface XY separating two transparent media, medium 1 and medium 2. Lines ab and cd represent wavefronts of a light wave travelling in medium 1 and incident on XY. Line ef and gh represent wavefront of the light wave in medium 2 after rafraciton. Speed of light is