Radioactivity
Radioactive decay law states N(t) = N_0 e^{-λ t} where λ is:
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About This Question
- Subject
- physics
- Chapter
- atoms and nuclei
- Topic
- radioactivity
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Decay constant
In the radioactive decay law N(t)=N0e−λt, the parameter λ is known as the decay constant (or disintegration constant). It represents the probability per unit time that a particular nucleus will decay. It is a characteristic property of each radioactive isotope and is inversely related to the half-life (T1/2=ln2/λ).
This medium difficulty physics question is from the chapter atoms and nuclei, covering the topic of radioactivity. It appeared in the 2025 exam.
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