Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

After 4 hours, $\frac{1}{16}$ of the initial amount of a certain radioactive isotype remains undecayed. What is the half life of the isotope?

Options:

15 min

30 min

45 min

60 min

Correct Answer:

60 min

Explanation:

The correct answer is Option (4) → 60 min