The energy of an ultraviolet photon is 2.6 times greater than a red photon.
The energy of a given photon of light is calculated using the wavelength and the speed of light.
The energy of the a red photon at the given wavelength is calculated as follows;
[tex]E_r = \frac{hc}{\lambda} \\\\E_r = \frac{6.67 \times 10^{-34} \times 3 \times 10^8}{650 \times 10^{-9}} \\\\E_r = 3.078 \times 10^{-19} \ J[/tex]
[tex]E_r = \frac{hc}{\lambda} \\\\E_r = \frac{6.67 \times 10^{-34} \times 3 \times 10^8}{250 \times 10^{-9}} \\\\E_r = 8.0 \times 10^{-19} \ J[/tex]
[tex]= \frac{8.0 \times 10^{-19}}{3.078 \times 10^{-19}} \\\\= 2.6[/tex]
Thus, the energy of an ultraviolet photon is 2.6 times greater than a red photon.
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