Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

In the Bohr's hydrogen atom model, the radius of the stationary orbit is directly proportional to (n = principle quantum number)

Options:

$n^{-1}$

n

$n^{-2}$

$n^2$

Correct Answer:

$n^2$

Explanation:

Bohr radius $r=\frac{\varepsilon_0 n^2 h^2}{\pi Z m e^2} ;~~∴ r \propto n^2$