Which of the following is the correct definition of 'half-life'?
A
the average life-time of a radioactive material
B
the time it takes a radioactive material to decay to half of its original quantity
C
half the period a radioactive material decays completely
D
half of the decay constant
E
the decay constant times life-time
Verified Correct Answer: B.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #29204)