Question

(e-1) (i-1 S. No. Angle of emergence (Ze) Angle of incidence (21) Angle of refraction (21) 1. 2. 3. 4. Result please tell it first urgent
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Answer 1

Explanation:

If the angle of incidence and angle of emergence of a light ray falling on a glass slab are given then by applying Snell’s law we can get,

sinr

sini

=

n

1

n

2

sine

sinr

=

n

2

n

1

On multiplying the above two equation we get

sine

sini

=1

sini=sine

Hence the angle of incidence is equal to the angle of emergence