Question

In a vacuum the speed of light is 300000000 m/s. If light slows

down to 200000000 m/s in glass, calculate the refractive index of
glass. Urgent pls hurry

Answer 1

n = 1.5

Step-by-step explanation:

The speed of light in vacuum is 300000000 m/s

The speed of light in glass is 200000000 m/s

We need to find the refractive index of the glass.

We know that, the ratio of speed of light in vacuum to the speed of light in medium is equal to refractive index of the medium.

`n=(300000000 )/(200000000 )\\\\=1.5`

So, the refractive index of the glass is 1.5.