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Home Q & A Board Science-Related Homework Help Physics
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illfavor illfavor
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11 years ago
Find the energy of a photon with an associated wavelength of 5.6 x 10?7 m.

You know Planck's constant is 6.6 x 10?34 J ? sec but I am confused about arithmetic...

Plz help...
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irinairina
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11 years ago
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11 years ago
from hc/ lambda, the answer is 3.55*10^-19 J, or 2.22 eV
wrote...
#3
11 years ago
E=hc/lambda
since u got all unknowns
and c= 3*10^8
u just evaluate
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