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Physics · 2018
JEE Main 2018 · 2018-04-08 Offline · Q24
An electron from various excited states of hydrogen atom emit radiation to come to the ground state. Let λ_n, λ_g be the de Broglie wavelength of the…
An electron from various excited states of hydrogen atom emit radiation to come to the ground state. Let $\displaystyle \lambda_{\mathrm{n}}, \lambda_{\mathrm{g}}$ be the de Broglie wavelength of the electron in the $\displaystyle \mathrm{n}^{\text {th }}$ state and the ground state respectively. Let $\displaystyle \Lambda_{\mathrm{n}}$ be the wavelength of the emitted photon in the transition from the $\displaystyle \mathrm{n}^{\text {th }}$ state to the ground state. For large n, (A, B are constants)
Official answer
(1)
$\displaystyle \Lambda_n \approx A+\frac{B}{\lambda_n^2}$
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JEE Main 2018 Physics question, with the answer from NTA’s final answer key. Where our answers come from.