- #1
leah0084
- 11
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Homework Statement
An excited atom emits a photon of red light with a wavelength of 701. nm, what is the energy of the photon?----> _________________J
Homework Equations
and for this, my application was
firstly get landa from formula of c=landa * nu
and then landa * h, which is Planck's constant which is 6.626e-34.
since my wavelength is 701 nm, it can be 701e-9 in order to change to meter format.
so my final application would be {(2.998e8m/s)/(701e-9m)} * ( 6.626e-34J*s)= 2.83e-19 (after rounding up to get significant figures which is 3 digits from 701nm)
The Attempt at a Solution
2.83e-19