1.

The following diagram indicates the energy levels of a certain atom when the system moves from 2E level to E, a photon of wavelength \[\lambda \] is emitted. The wavelength of photon produced during its transition from \[\frac{4E}{3}\] level to E is

A. \[\lambda /3\]
B. \[3\lambda /4\]
C. \[4\lambda /3\]
D. \[3\lambda \]
Answer» E.


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