A radioisotope has a decay constant of 10\(^{-7}\)s\(^{-1}\). The average life of the radioisotope is
A
1.00 x 107s
B
6.93 x 106s
C
1.00 x 10-7s
D
6.93 x 107s
Verified Correct Answer: A.
Physical Principles & Numerical Solution
Average life = \(\frac{1}{\text{decay constant}}\)
Average life = \(\frac{1}{1.0 \times 10^{-7}}\) = 1. 0 x 10\(^{-7}\)
Source: Myschool Past Questions Archive (Record #12787)