Light having a speed in vacuum of 3.0 × 10⁸ m/s enters a liquid of refractive index 2.0.In this liquid,its speed will be:

Question

Quizplus · Accepted Answer

The speed of light in a material is given by v = c/n, where c is the speed of light in vacuum and n is the refractive index of the material. Substituting c = 3.0 × 10^8 m/s and n = 2.0, we get v = 1.5 × 10^8 m/s. Therefore, the correct choice is C), which corresponds to 1.5 × 10^8 m/s.

Light Having a Speed in Vacuum of 3