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CBSE XII
>>
Physics
>>
Atoms
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Q)
A hydrogen atom initially in the ground level absorbs a photon, which excites it to
n
=
4
level. Determine the wave length and frequency of photon .
λ
=
97
×
10
−
8
m
;
α
=
31
×
10
15
H
z
λ
=
0.97
×
10
−
8
m
;
α
=
0.31
×
10
15
H
z
λ
=
9.7
×
10
−
8
m
;
α
=
31
×
10
15
H
z
λ
=
9.7
×
10
−
8
m
;
α
=
3.1
×
10
15
H
z
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