A stationary 
emitted a photon corresponding to the first line of Lyman series. This photon liberated a photoelectron from a stationary H -atom in the ground state. The velocity of the photoelectron will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Initially, energy corresponding to photon
Out of 
will be used for ionising H-atom.
Hence, KE of the photoelectron
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