If the detector is capturing 3.3×108 photons per second at this wavelength, what is the total energy of the photons detected in one hour? Express your answer using two significant figures.

Explanation:

First of all, we have to calculate the energy of each photon, given by

where

is the Planck constant

is the speed of light

is the wavelength

Substitutitng,

The problem says that the detector captures photons/second; since there are 3600 seconds in 1 hour, the number of photons detected per hour is

And so, the total energy of the photons detected in one hour is:

reserve is the answer