JEE MAIN - Physics (2020 - 2nd September Evening Slot - No. 23)

A light ray enters a solid glass sphere of refractive index $$\mu $$ = $$\sqrt 3 $$ at an angle of incidence 60^o. The ray is both reflected and refracted at the farther surface of the sphere. The angle (in degrees) between the reflected and refracted rays at this surface is ________.

Answer

Explanation

By Snell's law at S₁ :

1 $$ \times $$ sin 60° = $$\sqrt 3 $$ sin r

$$ \Rightarrow $$ r = 30^o

As S₂ :

$$\sqrt 3 \sin r = 1\sin e$$

$$ \Rightarrow $$ e = 60^o

Now, r + $$\theta $$ + e = 180^o

JEE MAIN - Physics (2020 - 2nd September Evening Slot - No. 23)

Explanation

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