JEE Advanced Model Paper 7 with solutions for online practice

Nucleus A decays to B with decay constant λ1 and B decays to C with a decay constant λ2 . Initially at t = 0 number of nuclei of A and B are 2N0 and N0 respectively . At t = t0 , number ofnuclei B stop changing. If at this instant number of nuclei of B are

3N0

2

, then