Question Detail

PHY 102 Test Compilation PHY 102 6 Objective Question

Question

Radioactive substance half-life 2 weeks. Emits 3000 particles/min at start. After 6 weeks?
Options
A 0
B 375
Correct Answer
C 500
D 1500
Correct Answer

Option B is the correct answer.

Detailed Explanation

6 weeks = 3 half-lives. Activity halves each time: 3000 → 1500 → 750 → 375 per minute.

Hint

A = A₀/2ⁿ.

Question Info