The half life of a radioactive substance is 20 minutes. The approximate time interval (t 2- t1 ) between the time t2 when 2/3 of it has decayed and ti...

 

The half life of a radioactive substance is 20 minutes. The approximate time interval (t 2- t1 ) between
the time t2 when 2/3 of it has decayed and time t1 and 1/3 of it had decayed is :

Anonymous User Physics 11 Nov, 2020 61 views

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