Question Detail

PHY 102 Test Compilation PHY 102 28 Objective Question

Question

The half-life of a substance is 24 years; find the amount of the substance left after 31 years from an initial amount of 24x10-2 kg.
Options
A 12 x 10-2 kg
B 2 x 10-3 kg
C 2.4 x 10-3 kg
D 9.8 x 10-2 kg
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

N=N0(0.5)^(31/24)=(0.24)(0.4084)=0.098kg.

Hint

N=N0(0.5)^(31/24)=(0.24)(0.4084)=0.098kg.

Question Info