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MHT CET 2023 (9 May, Shift 1) · Transitions, Photon Emission & Excitation

Transitions, Photon Emission & Excitation question from MHT CET 2023 (9 May, Shift 1)

Q28MHT CET 2023 · 9 MAY · SHIFT 1Easy

Transitions, Photon Emission & Excitation

If an electron in a hydrogen atom jumps from an orbit of level $n = 3$ to orbit of level $n = 2$ , then the emitted radiation frequency is (where R = Rydberg's constant, C = Velocity of light)

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Answer: (d)

$\nu = Rc\left(\frac{1}{n_f^2}-\frac{1}{n_i^2}\right)$
$\nu = Rc\left(\frac14-\frac19\right) = \frac{5Rc}{36}$
So the answer is (d) $\frac{5RC}{36}$ .

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