Question

the refractive index of glass is 1.5 calculate the speed of light in glass. the speed of light in air is 3.8*10^8m/s​

Answer 1

Answer:

Ng=1.5

Va=3 ×10^8

Explanation:

Ng=C/Vg

15/10=3×10^8/Vg

Vg=3×10^8/1.5

Vg=2×10^8

PLZ MARK IT AS THE BRAINLIEST

Answer 2

Given:

Speed of light in air = 3×10⁸ m/s

Refractive index of glass = 1.5

To Calculate:

Speed of light in glass

Formula:

μ = sin i/sin r

Solution:

1.5 = (3×10⁸m/s) / sin r

sin r = 2×10⁸m/s

Therefore, the speed of light in glass is 2×10⁸m/s.