# What is the energy of a photon of red light having a frequency of 4.448 x 1014 Hz?

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Expert Answers

gsenviro | Certified Educator

The energy of a photon is related to its frequency as:

`E = hnu`

where, h is the Planck's constant (6.626 x 10^-34 J s).

Thus, the energy of the photon can be calculated as:

`E = h xx nu = 6.626 xx10^(-34) xx 4.448 xx 10^14`

`= 2.947 xx 10^(-19) J`

Hope this helps.