What is the average life of a radioactive atom having a 'half life period' of T ?
Correct answer: A. 1.44 T
- A. 1.44 T
- B. 0.144 T
- C. 14.4 T
- D. 2T
Explanation
For radioactive decay, mean life is 1/λ, while half-life is ln 2/λ. Therefore, mean life = T/ln 2 ≈ 1.44T.
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