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JEE Mains · Chemistry · STD 11 - 2. structure of atom

निम्नलिखित में से हाईड्रोजन की संभव उत्तेजित अवस्था की ऊर्जा कौन सी ........... \(eV\) है ?

  1. A \(-3.4\)
  2. B \(+6.8\)
  3. C \(+13.6\)
  4. D \(-6.8\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(-3.4\)

Step-by-step Solution

Detailed explanation

For \(1 ^{st}\) excited state, the value of \(n=2\) By putting the value of \(n,\) we get the value of energy. Thus, the energy of electron in first excited state of hydrogen atom \(=-\frac{13.6}{n^{2}}=-\frac{13.6}{4}=-3.4 \mathrm{eV}\).
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