For a single photon, the energy is equal to the frequency, multiplied by the reduced Plank constant. Since the frequency is equal to the speed of the wave divided by the wavelength, for the wavelength this becomes: energy = (reduced Planck constant) x (speed of light) / wavelength.
Note that this is for a single photon only; it says nothing about the light from a flashlight, some other lamp, the Sun, etc., which consists of lots of photons.
The wavelength
Energy increases as the wavelength decreases.
They are inversely related. The product of these two would give the velocity of electromagnetic wave in the medium. The frequency character would never change as the wave changes from one medium to the other. But as the speed changes then definitely its wavelength would change
freq x wavelength = c (light speed)
Velocity equals frequency times wavelength
The wavelength
Energy increases as the wavelength decreases.
They are inversely related. The product of these two would give the velocity of electromagnetic wave in the medium. The frequency character would never change as the wave changes from one medium to the other. But as the speed changes then definitely its wavelength would change
freq x wavelength = c (light speed)
E = hc/l
The distance between consecutive crests of a wave. This serves as a unit of measure of electromagnetic radiation.
Velocity equals frequency times wavelength
The product of (wavelength) times (frequency) is equal to the speed of the wave.
frequency x wavelength = speed of the wave. This applies to all waves, not just to electromagnetic waves.
Wavelength and frequency are inversely proportional. The higher the frequency, the shorter (lower) the wavelength. Energy is proportional to frequency, and higher frequency waves will have a higher energy. Mathematically, frequency = 1 divided by wavelength, or f = 1/λ Use the link below for more information, including a diagram or two to make things clearer.
The energy of the wavelength w is E=hc/w, where h is Planck's Constant and c is the speed of light; E= .2E-24 Jm/w = 1.25E-6 evm/w.
The distinguishing features between one type of electromagnetic radiation and the other are the frequency and the wavelength (the product of both is the speed of the wave - the speed of light).