IB Physics HL E 3 20 Hl Decay Constant Meaning Questions
Interpret the HL decay constant as the per-unit-time decay probability for one nucleus, using its units and half-life meaning.
- Syllabus
- First assessment 2025
- Course
- Physics HL
- Level
- HL
Exam points
- define decay constant as the probability per unit time that an individual nucleus decays, with units such as s^-1
- distinguish individual decay probability from sample activity and total number of decays per unit time
- use a stated decay constant to estimate the probability of decay in a short time interval and connect it with half-life
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IB Physics HL E 3 20 Hl Decay Constant Meaning Questions question 1
[Maximum number: 2]
State what is meant by decay constant.
probability of decay of a nucleus OR the fraction of the number of nuclei that decay in one/the next second OR per unit time
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