HC Verma - Concepts of Physics Part 1

Book: HC Verma - Concepts of Physics Part 1

Chapter: 18. Geometrical Optics

Subject: Physics - Class 11th

Q. No. 2 of Short Answer

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Can you ever have a situation in which a light ray goes un-deviated through a prism?

Yes, definitely, when the incidence angle of light rays over one surface of prism perpendicularly, that is incidence angle is 0, . Here i, A, and e becomes 0. Hence deviation is also 0. Also we can find such cases of ‘dispersion without deviation’

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