If the refractive index of a medium is \(\sqrt{2}\), what is the critical angle?
A
45o
B
50o12'
C
56o25'
D
75o
E
90o
Verified Correct Answer: A.
Physical Principles & Numerical Solution
sin C = \(\frac{1}{n}\) ; sin C = \(\frac{1}{\sqrt2}\)
C = sin-1\(\frac{1}{\sqrt2}\)
= 45o
Source: Myschool Past Questions Archive (Record #28923)