Physics-Atoms
NEET Physics Atoms MCQ Question
Type: MCQ-Medium
The ground state energy of hydrogen atom is -13.6 eV. The kinetic energy of the electron in this state is
A
2.18 × 10⁻¹⁴ J
B
2.18 × 10⁻¹⁶ J
C
2.18 × 10⁻¹⁸ J
D
2.18 × 10⁻¹⁹ J
Correct Answer
Option C
Detailed Explanation
Here the ground state energy, E = -13.6 eV. Since K.E. of the electron = -E = 13.6 eV = 13.6 × 1.6 × 10⁻¹⁹ J = 21.76 × 10⁻¹⁹ J = 2.18 × 10⁻¹⁸ J.
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