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Question: Answered & Verified by Expert
A monochromatic ray of light enters into a glass $\operatorname{slab}(n=1.5)$ along the normal to the surface. The angle of deviation of the refracted ray is
PhysicsRay OpticsCOMEDKCOMEDK 2012
Options:
  • A $90^{\circ}$
  • B $45^{\circ}$
  • C $30^{\circ}$
  • D $0^{\circ}$
Solution:
2624 Upvotes Verified Answer
The correct answer is: $0^{\circ}$
When a ray of light enters a glass slab along the normal to the surface, it passes straight without deviation. So, angle of deviation is zero $\left(0^{\circ}\right)$.

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