Question

When light comes from air to glass,the refracted ray is bend towards the normal why?​

Answer 1

Answer:

When light rays travel from air into glass or from air into water, it bends towards normal. This is because the speed of light rays decrease while travelling from air into glass or water. Case 2: When light rays travel from optically denser medium to rarer medium then they bend away from the normal.16-Feb-2016

Explanation:

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Answer 2

$\sf\huge\bold{Question?}$

When light comes from air to glass,the refracted ray is bend towards the normal why?

$\sf\huge\bold{Answer:}$

When light rays travel from air into glass, it bends towards normal. This is because the speed of light rays decrease while travelling from air into glass

$\fbox{Explanation}$

During Refraction,there are two cases :

1. When ray travel from denser medium to rarer medium.

⇒In this case,the speed of light increases and thus it bends away from the normal.

1. When ray travel from rarer medium to denser medium.

⇒In this case,the speed of light decreases resulting in bending towards the normal.