(i) Write the relation between the activity of a radioactive sample and the number of…

PHYSICS · Subjective · CBSE · Physics · Nuclei · Nuclei

Problem

(i) Write the relation between the activity

A

of a radioactive sample and the number of undecayed nuclei

N

present in it. (ii) If

N

becomes half of its initial value, by what factor does

A

change? Give reason in one sentence.