In a radioactive decay process, the activity is defined as A = - dN dt , where N(t) is the number of...

Question

In a radioactive decay process, the activity is defined as A = - dN dt , where N(t) is the number of radioactive nuclei at time t. Two radioactive sources, S_1 and S_2 have same activity at time t = 0. At a later time, the activities of S_1 and S_2 are A_1 and A_2, respectively. When S_1 and S_2 have just completed their 3^ rd and 7^ th half-lives, respectively, the ratio A_1/A_2 is _____.

Accepted Answer

16

JEE Advanced 2023 Physics question

Solution

See the full step-by-step solution