Question:
The selling rate of a radioactive isotope is decided by its activity. What will be the second -hand rate of a one month old ${ }^{32} \mathrm{P}$ ( $\mathrm{t}_{1 / 2}=14.3$ days) source if it was originally purchased for 800 rupees?
Solution:
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.