Energy In One Quantum Of Light
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Energy In One Quantum Of Light

Determine the amount of energy in one quantum of light energy if its wavelength is 650 nm (nanometer).

The strings:

S7P3A32 (Force - Push).

The math:
Pj Problem of Interest is of type force (push). Energy is the capacity to do work which is actualize by force. Light energy can do a pull or push work. The push work is more common. Hence the Pj Problem of Interest here is of type force-push.

One quantum of light energy is the same as the energy of one photon. This energy is represented as:

E = hν -------(1).
Where E is the energy of one photon; h is Planck's constant (0.66252 x 10-33 Js), an important fundamental constant of nature discovered by Max Planck (1858-1947); and ν is the frequency of light.

The frequency ν = c/λ -------(2)
Where c is the velocity of light (3 x 108); and &lamda; is the wavelength of light.

So, from equation (2):
ν = (3 x 108)/(650 x 10-9) = 4.62 x 1014 Hz Hertz cycles per second).

So from equation (1):
Energy of one quantum of light with 650nm wavelength
= hν = (0.66252 x 10-33)(4.62 x 1014) = 3.06 x 10-19 J.

Blessed are they that have not seen, and yet have believed. John 20:29