The speed of light in air is 3 x 10\(^8\)ms\(^{-1}\). What is the speed in glass with a refractive index of 1.50?
A
1.5 x 108ms-1
B
3.0 x 108ms-1
C
2.0 x 108ms-1
D
6.0 x 108ms-1
Verified Correct Answer: C.
Physical Principles & Numerical Solution
n = \(\frac{\text{c}}{\text{v}}\)
1.5 = \(\frac{3 \times 10^8}{v}\)
v = 2.0 x 108ms-1
Source: Myschool Past Questions Archive (Record #28091)