Optics 2 Question 1
1. A transparent cube of side
Then,
(2019 Main, 12 April II)
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 1. (c)
Solution:
- Key Idea The critical angle is defined as the angle of incidence that provides an angle of refraction of
For total internal reflection, angle of incidence
where,
Now, in given arrangement,
at point
For TIR at
