| Date | May 2012 | Marks available | 1 | Reference code | 12M.1.HL.TZ2.31 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 31 | Adapted from | N/A |
Question
The decay constant of a radioactive isotope is 10–3s–1. Which of the following is the probability that a nucleus of the isotope will decay in the next second?
A. \(\frac{1}{{1000}}\)
B. 1000
C. 1000 ln2
D. \(\frac{1}{{1000\ln 2}}\)
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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