A rectangular glass slab having refractive index 3
is silvered at one surface as shown in figure. Light
ray will deviate by angle
when it cross the
glass slab.
Silvered
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Answer:
The answer is 120°
Explanation:
Given that:
θ=30°
If wall is absent then the light will follow a-b-c path but due to the presence of wall it deviates from original path and known as deviation of ray.
Suppose "δ" is the deviation angle.
We know that
θ + δ = 180°
θ=30°
δ = 180° - 30°
δ =120°
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