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  4. If 8.0 g of a radioactive isotope has a half-life of 10 yr. The half-life of 2.0 g of the same substance is

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Q. If 8.0 g of a radioactive isotope has a half-life of 10 yr. The half-life of 2.0 g of the same substance is

MGIMS WardhaMGIMS Wardha 2009

Solution:

Half-life is independent of initial amount, hence half-life of 2.0 g of substance is also 10 yr.