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Standard XII
Physics
Energy Levels
The wavenumbe...
Question
The wavenumber for the shortest wavelength transition in the Balmer series of atomic hydrogen is:
A
27420
c
m
−
1
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B
28420
c
m
−
1
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C
29420
c
m
−
1
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D
12186
c
m
−
1
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Solution
The correct option is
A
27420
c
m
−
1
For shortest wavelength ∆E=hcλ,
∆E should be maximum. Thus n1= 2 and n2 = ∞
Therefore, ϑ- =
1
λ
RH [ 122-1∞2]
= 109677 × 142
= 27420
c
m
−
1
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Calculate the wave number for the shortest wavelength transition in the Balmer series of atomic hydrogen.
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Calculate the wave number for the shortest wavelength transition in the Balmer series of atomic hydrogen.
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Enter 1 if the statement is True or 0 if False.
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