A 12.75 eV electron beam is used to bombard gaseous hydrogen at room temperature. The wavelengths emitted are in
Text Solution
Verified by ExpertsThe correct answer is:
A
When electron beam of 12.75 eV is incident over H-gaseous,
energy of H -atoms will be
This corresponds to 
excited state
Clearly, emitted radiation lies in lyman series ( 
and 
few emissions are is Balmer series ( 
and 
). One of them ( 
to 
) lies in paschen series ( 
).
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