Question
Question: The critical angle of a prism is 36<sup>0</sup>. The maximum angle of prism for which an emergent ra...
The critical angle of a prism is 360. The maximum angle of prism for which an emergent ray is possible is-
A
720
B
540
C
360
D
160
Answer
720
Explanation
Solution
For an emergent ray, A £ 2 ic
\ A £ 2 × 360
\ A £ 720