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Homework Statement
how can i tell if a photon is being emmited or absorbed?
Homework Equations
hc/lambda= energy per photon
1/lambda=r(1/n^2-1/k^2)
The Attempt at a Solution
photons are absorbed when the energy of the photon= energy of transition?
when are they emmited?
and i thought that energy of photon was always = to energy of transition so I am a bit confused.
for example, A photon with λ = 600 nm interacts with a hydrogen atom in fundamental state is the photon absorbed? how can i see whether it is or not?
i know fundamental state is k=1 but i don't know how i can see whether it is being absorbed or not