Light of velocity 3 x 108ms-1 is incident on a material of reflective of index n. If the velocity of light is reduced to 2.4 x 108ms-1 in the material, what is n?
-
A.
2.33 -
B.
2.25 -
C.
1.33 -
D.
1.25
Correct Answer: Option D
Explanation
n = (frac{3 times 10^8}{2.4 times 10^8})
n = 1.25