1.

the half life of a radioactive nucleus is 50 days . the time interval ( t2 - t1 ) between the time t2 when 2/3 of it has decayed and the time t1 when 1 /3 of it had decayed as (1) 30 days (2) 50 days (3) 60 days (4) 15 days

Answer» the half life of a radioactive nucleus is 50 days . the time interval ( t2 - t1 ) between the time t2 when 2/3 of it has decayed and the time t1 when 1 /3 of it had decayed as
(1) 30 days
(2) 50 days
(3) 60 days
(4) 15 days


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