For a radioactive material, its activity A and rate of change of its activity R are defined as A=- dN dt and...

Question

For a radioactive material, its activity A and rate of change of its activity R are defined as A=- dN dt and R=- dA dt , where N(t) is the number of nuclei at time t. Two radioactive sources P (mean life ) and Q (mean life 2 ) have the same activity at t=0. Their rates of change of activities at t=2 are R_P and R_Q, respectively. If R_P R_Q = n e , then the value of n is

Accepted Answer

2

JEE Advanced 2015 Physics question

Solution

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