What is the energy of a photon that emits a light of frequency $7.21 \times 10^{14}$ $7.21 times 10^14$ $H z$ $Hz$ ?

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Answer 1 · 2017-04-24T22:26:18

$sf(E)=4.78xx10^-19$ $"J"$

The chemical equation for the energy of a photon is given by:

$sf(E)=sf(h)nu$ , where $h$ is the Planck constant and $nu$ is the frequency.

$sf(E)=sf(h)nu=6.626xx10^-34$ $"J"$ $"s"$ $xx7.21xx10^14$ $"s"^-1$ $=4.78xx10^-19$ $"J"$

What is the energy of a photon that emits a light of frequency 7.21 times 10^147.21×10147.21 times 10^14 HzHzHz?