How would you calculate the energy of a photon with a known frequency?

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For example, if the frequency is "8x10^13Hz"

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Answer 1 · 2015-11-18T12:26:19

The energy of the photon can be calculated using $E = hv$

In the formula $E =hv$ :

$E$ is the energy in Joules
$h$ is Planck's Constant and
$v$ is the frequency of the photon (light)

So therefore the Energy of a photon with a frequency of $8*10^13$ Hz will be:

$E = hv$
$E = 6.626*10^(-34)$ $m^2$ . $kg$ / $s$ x $8*10^13$ Hz
$E = 5.3*10^-20$ Joules

Therefore the energy of the photon is $5.3*10^-20$ Joules

Hope I helped :)