Questions
An electron in a Bohr orbit of hydrogen atom with the quantum number n2 has an angular momentum . If the electron drops from this level to the next lower level, the wavelength of this line is
detailed solution
Correct option is D
Angular momentum, L=4.2176×10−34=n2h2π⇒ n2=4For the transition from n2 = 4 to n1 = 3, the wavelength of spectral line λ.1λ=13.6hc132−142=13.6eV1240eVnm79×16λ=1240×14413.6×7=1876nm=18760Å =1.876×104ÅTalk to our academic expert!
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