The energy levels of a certain atom for 1st, 2nd and 3rd levels are E, 4E/3 and 2E respectively.

The energy levels of a certain atom for 1^st, 2^nd and 3^rdlevels are E, 4E/3 and 2E respectively. A photon of wavelength l is emitted for a transition 3 →1. What will be the wavelength of emission for transition 2 → 1?

(a) λ/3

(b) 4λ/3

(d) 3λ

The energy levels of a certain atom for 1st, 2nd and 3rd levels are E, 4E/3 and 2E respectively.

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