A hypothetical atom has only three energy levels. The ground level has energy, $E_1=-8 \mathrm{eV}$. The two…

A hypothetical atom has only three energy levels. The ground level has energy, $E_1=-8 \mathrm{eV}$. The two excited states have energies, $E_2=-6 \mathrm{eV}$ and $E_3=-2 \mathrm{eV}$. Then which of the following wavelengths will not be present in the emission spectrum of this atom?
  1. $207 \mathrm{~nm}$
  2. $465 \mathrm{~nm}$
  3. $310 \mathrm{~nm}$
  4. $620 \mathrm{~nm}$

Solution

$E=\frac{h c}{\lambda}$

Asked in: JEE Main 2012 (12 May Online)

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