Find the decay rate of the substance having
4 * 1015 atoms. Half life of a radioactive substance
in o-decay is 1.2 x 107 s
(1) 2.3 * 108 atom/s (2) 3.2 x 108 atom/s
(3) 2.3 * 1011 atom/s (4) 3.2 x 1011 atom/s
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The quantity dN/dt is the rate of decay of the source or the activity of the source and is the number of disintegrations per second. This is measured in units called Becquerels (Bq) where 1 Bq = 1 disintegration per second. A larger and more traditional unit is the Curie (Ci) 1 Ci = 3.7 x1010 Bq.
Explanation:
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