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After what time a radioactive substances …

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After what time a radioactive substances remains 10% of its initial value & after what time radioactive Substance decay 90% of it's initial value

    • Posted by Kunal Jangid 7 years, 2 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Kunal Jangid 7 years, 2 months ago

    I solved this question. The Rutherford soddy eq. We will always find remaining part N=10% of No N=10/100×No N=No/10 N/No=1/2t/T1/2 No/10No =1/2t/T1/2 1/10=1/2t/T1/2 10= 2t/T1/2 (2) power 3.3=t/T1/2 3.3=t/T1/2 Then t= 3.3T1/2

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