Question

What is the formula for calculating the energy of a photon? E = h – f E = E = h + f E = hf

Answer 1

E = hf
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Answer 2

E = hf

Step-by-step explanation:

A photon is a particle which represents a 'quantum of light' or other electromagnetic radiation. These are particles that carry no mass and move at the speed of light.

The energy of a photon (E) can be given by Planck's equation where:

`E = hf`

h = planck's constant = 6.626 *10⁻³⁴ Js

f = frequency of photon =
`(c)/(\lambda )`

where λ = wavelength of photon.

Therefore,
`E= (hc)/(\lambda )`