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Q & A: Wavelength <--> energy relation

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Most recent answer: 10/22/2007
Q:
What is the relationship between a wave length of light absorbed or released by an atom and the transfer of a discreet amount of energy?
- Cody Hill (age 16)
Fountain Hills, AZ USA
A:
The energy of a photon is given by E = hf where h is Plank's constant and f is the frequency of the photon.   Since the frequency is related to the wavelength  by  lambda =  c/f where c is the speed of light  then   lambda =  hc/E.

LeeH

(published on 10/22/2007)

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