[" 13.For a radioactive material,half-li...

[" 13.For a radioactive material,half-life is "],[10" minutes.If initially there are "600" number of "],[" nuclei,the time taken (in minutes) for the "],[" disintegration of "450" nuclei is "],[[" (1) "30,],[" (2) "10,],[" (4) "15]]

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[" 13.For a radioactive material,half-life is "],[10" minutes.If initially there are "600" number of "],[" nuclei,the time taken (in minutes) for the "],[" disintegration of "450" nuclei is "],[[" (1) "30,],[" (2) "10,],[" (4) "15]]

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