Answer:The energy, in joules, of one incident photon at this frequency[tex]3.97\times 10^{-19} Joules[/tex].
Explanation:
The wavelength of the light = [tex]\lambda =5.0\times 10^{-7} m[/tex]
Energy of a single photon is given by the expresssion:
[tex]E=\frac{hc}{\lambda }[/tex]
h = Planck's constant
c = speed of light
[tex]E=\frac{6.626\times 10^{-34} J.s\times 3\times 10^8 m/s}{5.0\times 10^{-7} m}=3.97\times 10^{-19} Joules[/tex]
The energy, in joules, of one incident photon at this frequency[tex]3.97\times 10^{-19} Joules[/tex].