Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

In Bohr's atomic model, the radius of the first orbit is $r_o$. The radius of the third orbit will be:

Options:

$3r_o$

$9r_o$

$r_o$

$r_o/3$

Correct Answer:

$9r_o$

Explanation:

The correct answer is Option (2) → $9r_o$