Why Does Light Have Different Energy Levels? Explained

[benzun_1999]

Though all EM waves travels in the same speed each one has a diiferent energy. can anyone tell me why. i know it is because of planks equation. but i am looking for some logical explanation.

 

[ahrkron]

Naively, you can think of it as an "internal vibration", the speed of which (its frequency) determines the energy of the radiation.

 

[benzun_1999]

yes by the way what happens to the energy of the light when it passes through a different medium pls explain to me in detail.

 

[Doc Al]

When light passes through a passive medium its frequency (and thus the energy of a photon) remains the same but its wavelength changes.

 

[vaishakh]

Energy of light rays does not change as it change mediums. the speed of different frequence light rays are different in different mediums and thus the wavelength of different frequency rays take the appropriate value

 

[benzun_1999]

thanks for the help