First, we need to find the energy of one photon. We can use the formula:
$E = \dfrac{hc}{\lambda}$
where $E$ is the energy of one photon, $h$ is Planck's constant ($6.63 \times 10^{-34} \text{ Js}$), $c$ is the speed of light ($3 \times 10^8 \text{ m/s}$),
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