Question

What is angle of refraction of ray of light incident normally to the surface?

(a) 90

(b) 60

(c) 30

(d) 0​

Answer 1

If a ray of light is incident normally, angle of incidence will be zero as all angles are measured from normal. As, ∠i=∠r. so, if a ray of light is incident normally on the glass slab, then angle of refraction will be 00 .

Answer 2

Answer:

0 is the correct answer bro.

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