Question

When the frequency of a light wave changes, what happens to the light?

Answer 1

Frequency changes means wavelength changes inversely.

Answer 2

if the frequency changed, then the color changes

Answer 3

:P hurhurhur

Answer 4

First, if the frequency changes, i.e. the number of oscillations of the light wave per unit time changes, the energy in the light changes. That energy is defined as follows:\[E=h \nu \]In that equation, E is energy, h is Planck's constant, and υ is the frequency. Second, if the frequency changes, the wavelength changes because the frequency multiplied by the wavelength is a constant. That constant is the speed of light in whatever medium it is the light is traveling through. See @AravindG's equation at the top. Lastly, if the frequency changes, the light's momentum changes, and that's given by the following equation:\[p=\frac{ h \nu }{ c }\]In that equation, p is momentum, and c is the speed of light. h and υ are as earlier defined.

So, there are at least three things that change when the frequency of light changes.