Question

26. State whether light slows down
or speeds up in the following cases
a) Light going from air to glass​

Answer 1

option are :-

(a) Light going from air to glass / ✓ /

(b) Light going from glass to water. / × /

(c) Light going from water to air. / × /

$answer \geqslant$

(a)Light going from air to glass

Where μ= Reflective index of medium.Hence, Light passes from rare medium to denser medium, it’s velocity goes down.

Therefore

(a) Slows down

(b) Speeds up

(c) Speeds up

which slow down

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