The energy of a photon is directly proportional to its frequency. The frequency (and therefore also the energy) are inversely proportional to the wavelength (for any wave, frequency x wavelength = speed of the wave).
The energy increases as the frequency increases.
The frequency decreases as the wavelength increases.
So, the energy decreases as the wavelength increases.
Velocity equals frequency times wavelength (v=fλ). The velocity is equal to the speed of light (3 x 10^8). Rearranging the equation gives f=v/λ. Therefore f = (3 x 10^8)/(788 x 10^-9). f = 3.81 x...
You can measure a wave either by the physical distance between two similar points (wave length), or by how many similar points pass, in the period of one second. (cycles per second or Hertz)The...