Question

Explain the refraction of light through a rectangular glass slab with diagram and start the law of refraction ​

Answer 1

Answer:

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. In this case incident ray and the emergent ray are parallel to each other.

Answer 2

As the ray EO enters from air (rarer medium) to glass (denser medium), the ray bends towards normal and follows the path OOl inside the glass slab. At point Ol, refraction enters from glass (denser medium) to air (rarer medium) the ray bends away from normal and follows the path OlH outside the glass slab.