A ray of light is incident on a slab as shown in figure. The refractive index of medium of slab changes as μ = √(1 + y2). The angle made by ray with x – axis at y = √2 is
A ray of light is incident on a slab as shown in figure. The refractive index of medium of slab changes as μ = √(1 + y2). The angle made by ray with x – axis at y = √2 is
Option 1 -
37º
Option 2 -
30º
Option 3 -
60º
Option 4 -
45º
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1 Answer
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Correct Option - 3
Detailed Solution:i = 60? , μ = √3
∴ 1 × sin (60? ) = √3 × sin r
=> r = 30?
∴ angle with x-axis = 60?
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