Question

speed of light is maximum in in​

Answer 1

Explanation:

Speed of light is maximum in vacuum and is equal to 3×108m/s (approx). Because the value of k = 1.

Answer 2

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✯ Speed of light is maximum in vacuum i.e 3×10⁸m/sec.

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When light passes through a transparent medium, it passes between the atoms at the speed c. However, each interaction with charged particles in the medium delays the phase of the light, so that its speed within the medium, v, is reduced. The ratio of the speed of light in vacuum to the speed of light in the medium is called the refractive index of the medium, denoted by n :

${\sf{\Large{n \ = \ \frac{c}{v}}}}$

The speed of light depends on the density of medium.

It increases with the decrease in density of medium.

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