Question
Fri February 03, 2012 By: Febna Rasheed

activity

Expert Reply
Fri February 03, 2012
 
 
 
N=N0 e-?t--------(1)
 
differentiating (1)
 
dN/dt=(-?N0)e-?t-------(2)
 
 
R====dN/dt-----Activity-- rate of decaying of the radioactive nuclei.
 
 
eq (2) becomes
 
R=(-?N0)*e-?t------(3)
 
WE KNOW
 
?=log2/ t 1/2----(4)
 
now from the given values you can find the answer.
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