JEE Advanced | 2013Atomic StructureHard
Question
The radius of the orbit of an electron in a Hydrogen-like atom is 4.5 a0, where a0 is the Bohr radius. Its orbital angular momentum is 
It is given that h is Planck constant and R is Rydberg constant. The possible wavelength (s), when the atom de-excites, is (are) :-
It is given that h is Planck constant and R is Rydberg constant. The possible wavelength (s), when the atom de-excites, is (are) :-Options
A.
B.
C.
D.
Solution
Angular momentum 
Also
for de-excitation
for n = 3 to n = 1
for n = 3 to n = 2
for n = 2 to n = 1
Also
for de-excitation
for n = 3 to n = 1
for n = 3 to n = 2
for n = 2 to n = 1
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