Question

What is the velocity of light in meters per second in a material with an index of 2.0?

Answer 1

Answer:

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Answer 2

Given;

refractive index (μ) = 2.0

Speed of light (c) = 3 × 10⁸ m/s

To Find;

Velocity of light in m/s in the material

Solution;-

We know that;-

μ = $\frac{c}{v}$

⇒ v = $\frac{c}{\mu}$ = $\frac{3 * 10^{9} }{2}$ = 1.5×10⁹m/s

Hence, the velocity of light in the material is  1.5×10⁹m/s