The refractive index of the medium M in the diagram above is
Attached Figure / Diagram
A
1/√3
B
2√3
C
√3
D
2/√3
Verified Correct Answer: C.
Physical Principles & Numerical Solution
From the above diagram ; ? = 90o - 30o = 60o
v = 90 - 60 = 30
∴ refractive index = (sin ?)/(sin v) = (sin 60o / sin 30o) = √3/2/1/2
= √3/2 x 1/2
= √3
Source: Myschool Past Questions Archive (Record #12926)