The following diagram indicates the energy levels of a certain atom, When the system moves from 4 E level to E. A photon of wavelength λ1is emitted. The wavelength of photon produced during its transition from 7/3 E level to E is λ2. The ration λ1λ2 will be

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answer is B.

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Detailed Solution

Transition from 4E to E4E−E=hcλ1⇒λ1=hc3E ...iTransition from 73E to E73E−E=hcλ2⇒λ2=3hc4E ..iiFrom equation i and ii λ1λ2=49

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