Wave cycles of photons in one second?

Question

how many wave cycles of photons per second

Answer 1

Depends on the energy of the photon. The amount of cycles (f) is the speed (3.0 x 10^8 m/s) divided by the wavelength.

Answer 2

Wave cycles => Frequency

(1) in vacuum

It depends on it's wave length as velocity is constant =c = 3 * 10 ^ 8 m/s

like this  f = c /  ÃŽÂ» (wave length)

(2) in a medium

if the wave is traveling in a medium not in vacuum it's frequency will depend upon it's wave length and the index of refraction of that medium

like this v = c / n ( index of refraction) then f = v /  ÃŽÂ» (wave length)

Answer 3

It depends upon the type of photons in question. If you want to consider visible light photons with wavelengths of approx. 600 nanometers= 6 x 10^-9 m the frequency is 5 x 10^14 Hertz or cycles per second. That's 500 trillion Hertz

You can calculate this from

frequency = speed of light / wavelength =(3 x 10^8 m/s) /(6 x 10^-9 m) = 5 x 10^14 Hz