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Question
The angle of incidence of a light ray on a rectangular glass slab is 45°. Which of the following cases correctly shows the path of the emergent ray?
The angle of incidence of a light ray on a rectangular glass slab is 45°. Which of the following cases correctly shows the path of the emergent ray?
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Solution
The correct option is C
When the light ray is incident on a rectangular slab obliquely, it undergoes refraction and emerges out of the slab making the same angle with the normal as the incident ray, i.e., ∠i = ∠e.
When the light ray is incident on a rectangular slab obliquely, it undergoes refraction and emerges out of the slab making the same angle with the normal as the incident ray, i.e., ∠i = ∠e.
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