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AIIMS 2012
Exam
AIIMS
Year
2012
Subject
Physics
Chapter
Atomic Physics

AIIMS 2012 · Physics · Atomic Physics

Assertion: Total energy of electron in an hydrogen atom is...

Assertion: Total energy of electron in an hydrogen atom is negative.Reason : It is bounded to the nucleus.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

We know that E=−13.6n2eVE=-\frac{13.6}{n^2} \mathrm{eV} It shows that total energy of electron in a stationary orbit in a hydrogen atom is negative, which means the electron is bound to the nuclear and is not free to leave it.
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