Physics-Hydrogen Atom

NEET Physics Hydrogen Atom MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Which of the following statements about the hydrogen atom are correct?

A

The total energy of the electron in the hydrogen atom is negative, indicating it is bound to the nucleus.

B

The electrostatic potential energy of the electron is positive, suggesting the electron is free.

C

The kinetic energy and potential energy of the electron are equal in magnitude but opposite in sign.

D

The electron in a hydrogen atom can follow a closed orbit only if its total energy is positive.

Correct Answer

Option A

Detailed Explanation

The total energy of the electron in a hydrogen atom is negative, which shows it is bound to the nucleus. The potential energy is negative, indicating attraction, while the kinetic energy is positive. Option B is incorrect because the potential energy is negative, and D is wrong as a positive total energy would imply the electron is not bound.

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