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JEE Main 2012 Physics question

PhysicsAtomsJEE Main 2012

A hypothetical atom has only three energy levels. The ground level has energy, eV. The two excited states have energies, eV and eV. Then which of the following wavelengths will not be present in the emission spectrum of this atom?

Answer: (2)

Solution

Emission energies: 3→1: 6 eV (207 nm), 3→2: 4 eV (310 nm), 2→1: 2 eV (620

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Question ID VK-103470