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Questions  >>  JEEMAIN and NEET  >>  Physics  >>  Class12  >>  Atoms
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In an ore containing uranium , the ratio of U238 to Pb206 nuclei is 3 . Then calculate age of ore assuming that all lead present in ore is final stable products of U238 . Take half life if U238 to be 4.5×109years

(a)2.12×1013years(b)1.26×107years(c)1.87×109years(d)3.2×1010years

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