Question

light enters from air to glass having reflection index 1.50. what is the speed of light in the glass? also, find the power of the lens.​

Answer 1

Answer:

The speed of light in glass is 2×10^8 m/s.

Explanation:

Given that,

Refractive index μ=1.50

Speed of light c=3×10^8 m/s

We know that,

n = c/ v

g g

v = 3 × 10^8 / 1.50

g

v = 2 × 10^8

g

Hence, the speed of light in glass is 2×10^8 m/s