Question

a ray of light incident normally on the surface of water. it's angle of refraction in water is ______​

Answer 1

Answer:

90°

As it incidences at normal and angle of incidence is equal to angle of refraction...

So angle is 90°

Hope it helps...

Answer 2

Answer:

90°

Explanation:

As it incidences at normal and angle of incidence is equal to angle of refraction...

So angle is 90

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