Is Speed Of Light Independent Of Frequency?

Question

Is Speed Of Light Independent Of Frequency?

2 Answers

Answer Question

Answer 1

The relationship between speed of light and frequency is;

Speed of light = Frequency* wavelength

OR

Frequency = speed of light / wavelength

The speed of a light is a constant value and its value is 3 x 10⁸ meters per second. The speed of light remains constant but frequency and the wavelength of light change inversely. If we increase the frequency of light wave, the wavelength of the wave decrease. Similarly, if we increases the wavelength of light wave, the frequency decreases.

Answer 2

To clarify the first answer, the speed of light is constant in the same medium. The quoted value of the speed of light is for free space. It is slower in every other medium (air, water, etc.).

In short, Yes: The Speed of light is a function only of the medium it is in, not frequency or wavelength.