A hydrogen atom in its ground state is irradiated by light of wavelength 970   Å . Taking hc/e =…

A hydrogen atom in its ground state is irradiated by light of wavelength 970 Å. Taking hc/e = 1.237×10-6 eV m and the ground state energy of hydrogen atom as -13.6 eV , the number of lines present in the emission spectrum is

Solution

hcλ=12370970
-13.6+12.7= -13.6n2
n2=16
n=4
Number of lines =nC2=6 !

Asked in: JEE Advanced 2016 (Paper 1)

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