GATE PH 2026 PH Q58: Atomic and Molecular Physics

An atom has two energy levels with energy difference 2.2 eV between them. A gas of these atoms is with

atoms in the upper state and

atoms in the lower state. Ignoring spontaneous emission, the maximum possible energy released by gas of atoms by stimulated emission is

Joules. The value of

(rounded off to one decimal place) is ____ (

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