The electron in a hydrogen atom jumps back from an excited state to ground state by emitting a photon of wavelength 
where 
is Rydberg's constant. In place of emitting one photon, the electron could come back to ground state by
A
emitting 3 photons of wavelengths 
, and 
such that 
, and such that B
emitting 2 photons of wavelength 
and 
such that 
and such that
C
emitting 2 photons of wavelength 
and 
such that 
and such that
D
emitting 3 photons of wavelength 
and 
such that 
and such that
Text Solution
Verified by ExpertsThe correct answer is:
A
If 
then 
. Energy conservation requires the sum of photon energies to equal the original energy:
So three photons must satisfy 
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