Question

Which of the following description is NOT correct regarding "half-life" in an exponential decay problem?

A. Half-life is the length of time it takes an exponentially decaying quantity to decrease to
half its original amount.
B. Half-life is exactly half of the life time of the exponential decay substance.
C. Half-life is bigger than half of the life time because the exponential decay quantity
decreases very fast in the beginning
D. Both A and C
E. Both B and C.

Answer 1

D because a half life is the exact measure of half of the decay problem so it does take longer or it doesn’t track the time but it tracks the exponential decay substance exactly