Refraction of light from a glass slab
Answers
Answer:
Explanation:
One when it enters the glass slab from air and second time when it enters the air through glass slab. When light rays travelling through air enters glass slab, they get refracted and bend towards the normal. ... Since the ray of light I know travelling from denser medium to rarer medium, it bends away from the normal.
Refraction Of Light Through A Glass Slab. Refraction through a rectangular glass slab and principle of reversibility of light: ... On entering the glass slab, it bends towards normal and travels along EF at an angle of refraction r. The refracted ray EF is incident on face SR at an angle of incidence r'
In case of a glass slab, the incident ray is parallel to the emergent ray, that means the angle of incidence is equal to the angle of emergence. ... As the refractive index of the glass slab is denser than that of air, the ray of light bends towards the normal.
Answer:
it is the bending of light as it passes from one substance to another here the light ray passes from air to glass and back to air the bending is caused by the differences in density between the two substances.