What is the speed of light?

The speed of light is the speed at which light propagates through a medium.

• Light travels at a constant speed of 1.07 billion km per hour.
• The speed of light is a universal constant. It is the speed at which all electromagnetic radiation travels in a vacuum.
• The mathematical expression for the speed of light is c = f x λ, where f = frequency of light, λ = wavelength of light, and c = speed of light.
• The value of the speed of light is calculated as 2.997 x 10⁸ m/s
• Hence, the speed of light is 3 x 10⁸ m/s.

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