Answer:
[tex]1.95\cdot 10^{-19} J[/tex]
Explanation:
The energy of a photon is given by:
[tex]E=hf[/tex]
where
[tex]h=6.63\cdot 10^{-34}Js[/tex] is the Planck constant
[tex]f=2.94\cdot 10^{14} Hz[/tex] is the frequency of the photon
Substituting the numbers into the equation, we find:
[tex]E=(6.63\cdot 10^{-34} Js)(2.94\cdot 10^{14} Hz)=1.95\cdot 10^{-19} J[/tex]
