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what are the frequency and wavelength of a photon emitted during a transition from n=5 state to then n=2 state in the hydrogen atom
From wave number formulae:1/k = Rz^2*(1/2^2 – 1/5^2)1/k = R*1^2*(1/4 – 1/25)1/k = 21R/100k = 100/21Rf = c/k put he k value.
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