Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

The energy required to remove an electron in a hydrogen atom from n = 10 state is

Options:

13.6 eV

1.36 eV

0.136 eV

0.0136 eV

Correct Answer:

0.136 eV

Explanation:

Energy required = $\frac{13.6}{n^2}=\frac{13.6}{10^2}=0.136 ~eV$