The radius of hydrogen atom in the ground state is 
. After collision with an electron it is found to have radius of 
, the principal quantum number ' 
' of the final state of the atom is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Radius of hydrogen atom in ground state,
Radius of hydrogen atom in final state, 
We know that, for hydrogen atom, 
Now, according to Bohr's theory,
radius of hydrogen atom in final state,
or 
or 
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