Question

The speed of light in a glass slab of refractive index 1.5 is​

Answer 1

Answer:

Given

Refractive index=1.5

Speed of light in vacuum(c) =3x10^8 m/s

Refractive index = c/v

V=c/r.i. =3x10^8/1.5

V=2x10^8m/s

Explanation:

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Answer 2

Answer :

$2*10^8 m/s$

Step by Step Explanation :

$Speed \ of \ light \ in \ glass = \frac{Speed \ of \ light \ in \ air}{Refractive \ index}$

⇒ $\frac{3*10^{8}}{1.5}$

⇒ $2*10^8 m/s$