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MHT CET 2026 (15 Apr, Shift 2) · Transitions, Photon Emission & Excitation

Transitions, Photon Emission & Excitation question from MHT CET 2026 (15 Apr, Shift 2)

Q2MHT CET 2026 · 15 APR · SHIFT 2Easy

Transitions, Photon Emission & Excitation

The electron in hydrogen atom is initially in the second excited state. When it finally moves to ground state, the maximum number of spectral lines emitted are

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Answer: (b)

Second excited state means $n = 3$ .
Maximum lines $= \frac{n(n-1)}{2} = \frac{3\times2}{2} = 3$
So the answer is (b) $3$ .

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