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  4. If half-life of a radioactive atom is 2.3 days, then its decay constant would be:

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Q. If half-life of a radioactive atom is 2.3 days, then its decay constant would be:

JIPMERJIPMER 2000

Solution:

Given: half-life of radioactive atom is = 2.3 days Then decay constant is $ \lambda =\frac{0.693}{{{T}_{1/2}}}=\frac{0.693}{2.3}=0.3 $