Question

PLEASE ANSWER THIS FAST , exam is going on
the refractive index of a glass is 1.5 and the speed of light in vacuum is 3*10^8 m/s . What is the speed of light in the glass ?
options :
1.
1.5*10^8 m/s
2.
1.25*10^8m/s
3.
1.55*10^8m/s
4.
1.6*10^8m/s

Answer 1

opt 4 is the answer thank me later after exam

Answer 2

Answer:

Please mark me brainliest if the answer helps you.

Explanation:

(a) Refractive index of glass, μ = 1.5 ,Speed of light, c = 3 × 10⁸m/s Speed of light in glass is given by the relation,

$\frac{3 \times {10}^{8} }{1.5} = 2 \times {10}^{8}$

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