Question

how refraction take place in glass slab​

Answer 1

Explanation:

When light rays travelling through air enters glass slab, they get refracted and bend towards the normal. Now the direction of refracted ray changes again when it comes out of the glass slab into air. Since the ray of light I know travelling from denser medium to rarer medium, it bends away from the normal.

hope it helps

#markasbrainliest

Answer 2

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.

Explanation:

please mark me as brainleist