Answer:
The frequency of the photon is [tex]3.069\times10^{14}\ Hz[/tex].
Explanation:
Given that,
Energy [tex]E=4.07\times10^{-19}\ J[/tex]
We need to calculate the energy
Using relation of energy
[tex]E_{4}-E_{2}=\Delta E[/tex]
Where, [tex]\Delta E[/tex] = energy spacing
[tex]4h\nu-2h\nu=4.07\times10^{-19}[/tex]
[tex]\nu=\dfrac{4.07\times10^{-19}}{2h}[/tex]
Put the value of h into the formula
[tex]\nu=\dfrac{4.07\times10^{-19}}{2\times6.63\times10^{-34}}[/tex]
[tex]\nu=3.069\times10^{14}\ Hz[/tex]
Hence, The frequency of the photon is [tex]3.069\times10^{14}\ Hz[/tex].