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

The disintegration rate of a radioactive sample at a certain instant is 4750 dpm . Five minute later rate becomes 2700 disintegration per minute ; Then the half-life of sample is

$(a)\;12.26 min\qquad(b)\;6.13 min\qquad(c)\;3.06 min\qquad(d)\;7.92 min$

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