Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

The order of the size of nucleus and Bohr radius of an atom respectively are

Options:

10-14 m, 10-10 m

10-10 m, 10-8 m

10-20 m, 10-16 m

10-8 m, 10-6 m

Correct Answer:

10-14 m, 10-10 m

Explanation:

Diameter of nucleus is of the order of 10–14 m and radius of first Bohr orbit of hydrogen atom r = 0.53 × 10-10 m.