Light travels at a speed of equation m/s in air. What is the speed of light in glass, which has an index of refraction of 1.5?

Question

asked Sep 9, 2022 154k views

1 Answer

Mmativ · Answer 1 · 2022-09-15T04:24:19+0000

Answer:

$2* 10^(8)\ \text{m/s}$

Step-by-step explanation:

= Refractive index of glass = 1.5

= Speed of light in vacuum =
$3* 10^8\ \text{m/s}$

Refractive index is given by

$n=(c)/(v)\\\Rightarrow v=(c)/(n)\\\Rightarrow v=(3* 10^8)/(1.5)\\\Rightarrow v=2* 10^(8)\ \text{m/s}$

The speed of light in the glass is
$2* 10^(8)\ \text{m/s}$ .