Question

After a long time bombardment, number of ${}^{56}Mn$ nuclei present in the target depends upon
i. the number of ${}^{56}Mn$ nuclei present at the start of the process
ii. half-life of the ${}^{56}Mn$
iii. the constant rate of production P

• A. All (i), (ii), and (iii) are correct
• B. only (i) and (ii) are correct
• C. only (ii) and (iii) are correct
• D. only (i) and (iii) are correct

Answer 1

The correct option is C only (ii) and (iii) are correct

As the $activity\left(A\right)=\frac{ln2}{halflife}\times Numberofparticles\left(N\right)-\left(1\right)$

Here, $A=P$.

So from equation $\left(1\right)$, $Numberofparticles$ depends upon $half-life$ and the constant rate of production $P$, but not on the number of particles at start of the process.