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JEE PHYSICS MCQ: RAY OPTICS
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You are given four sources of light each one providing a light of a single colour, blue, green and yellow. Suppose the angle of refraction for a beam of yellow light corresponding to a particular angle of incidence at the interface of two media is . Which of the following statement is correct if the source of yellow light is replaced with that of other lights without changing the angle of incidence?
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Correct option: C
The beam of blue light would undergo total internal reflection
Option C is correct. Since the angle of incidence is the critical angle for yellow light, the critical angle for blue light will be smaller (higher refractive index), leading to total internal reflection.
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