Q215
Consider the following statements. 1. A fibre is an optical system based upon the basic principle of total internal reflection. 2. In total internal reflection, the angle of incidence should always be greater than critical angle. 3. The critical angle is very low for a light ray coming from diamond to air. Which of the statements given above is/are correct?
A.
1 and 2
B.
Only 2
C.
2 and 3
D.
All of these
AnswerAnswer: Option D
Solution
Answer: Option D
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