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Home Q & A Board Science-Related Homework Help Physics
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solarflare solarflare
wrote...
11 years ago
A photon of ultraviolet (UV) light possesses enough energy to mutate a strand of human DNA. What is the energy of a single UV photon having a wavelength of 37 nm?
______ J

What is the energy of a mole of UV photons having a
______ J
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wrote...
#1
11 years ago
E = h x f

and frequency = velocity/wavelength
= 3x10^8/37x10^-9
= 0.81m

so E = 6.63x10^-34 x 0.81
= 5.37x10^-34 J

6.02x10^23 x 5.37x10^-34

= 3.23x10^-10 J
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