Most Important Selected Qs for JEE AdvancedPhysicsNuclear Physics
In a radioactive decay reaction: If the sample has only A initially, then select correct alternative(s) at the instant the number of the particles of B is maximum:
Options
- AActivity of A is equal to activity of B
- BNo of atoms of A is 4.5 times of B
- CActivity of A is more than activity of B
- DActivity of A is minimum
Correct answer
B. No of atoms of A is 4.5 times of B
Step-by-step solution
aligned & d[A] d t =-2 N_A & d[B] d t =2 N_A-9 N B aligned At the time B is maximum, d[B] d t =0 N _ A =4.5 ~N _ B