Q.

Which one of the following transitions of an electron in hydrogen atom emits radiation of the shortest wavelength ?

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a

n2 = ∞ to n1 = 2

b

n2 = 4 to n1 = 3

c

n2 = 2 to n1 = 1

d

n2 = 5 to n1 = 3

answer is C.

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Detailed Solution

Emission of shortest wavelength means maximum wave number (or) energy, Maximum difference in the energy is between n = 2 to n = 1
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Which one of the following transitions of an electron in hydrogen atom emits radiation of the shortest wavelength ?