The half-life of a radioactive substance is 2 seconds. Calculate the decay constant
A
0.035s-1
B
0.151s-1
C
0.347s-1
D
0.576s-1
E
1.386s-1
Verified Correct Answer: C.
Physical Principles & Numerical Solution
\(\lambda = \frac{0.693}{T_{\frac{1}{2}}} = \frac{0.693}{2}\)
= 0.347s-1
Source: Myschool Past Questions Archive (Record #33453)