Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

A radioactive substance decays to $\frac{1}{8}$th of its initial activity in 30 days. The half life of the radioactive substance expressed in days is:

Options:

5

10

20

30

Correct Answer:

10

Explanation:

The correct answer is Option (2) → 10