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Questions  >>  JEEMAIN and NEET  >>  Physics  >>  Class12  >>  Atoms
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Q)

Half life of a radioactive substance A is 4 days . The probability that a nucleus will decay in two half-lives is :

$(a)\;\large\frac{1}{2}\qquad(b)\;\large\frac{1}{4}\qquad(c)\;\large\frac{3}{2}\qquad(d)\;\large\frac{3}{4}$

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