NEET Physics Nuclei Questions Solved


In a radioactive substance at t = 0, the number of atoms is 8×104, its half-life period is 3 yr. the number of atoms 1×104 will remain after interval [UP CPMT 2010]

(1) 9 yr              (2) 8 yr              (3) 6 yr             (4) 24 yr

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