JEE Main 2021 — Ray Optics Question with Solution
JEE Main 2021 (25 Jul Shift 1)
Question
A ray of laser of a wavelength is incident at an angle of at the diamond-air interface. It is going from diamond to air. The refractive index of diamond is and that of air is . Choose the correct option.
Choose an option
Show full solutionCorrect option: C
Correct answer
CRefraction is not possible.
Step-by-step explanation
Total internal reflection will happen.
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This is a previous-year question from JEE Main 2021, covering the Ray Optics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.