Optics Question 943

Question: In the given curve of the above question, find the value of angle i1 in degrees.

Options:

A) 40o

B) 60o

C) 70o

D) 90o

Show Answer

Answer:

Correct Answer: D

Solution:

[d] When angle of incidence is i1,e=40o (from reversibility of ray) also δ=70o

70o=i1+40oAi1=90o



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