Physics · 2022
JEE Main · 29 June 2022, Shift 1 · Q33
The activity of a radioactive material is 2.56 × 10^-3 Ci. If the half life of the material is 5 days, after how many days the activity will become 2…
The activity of a radioactive material is $\displaystyle 2.56 \times 10^{-3} \mathrm{Ci}$. If the half life of the material is $\displaystyle 5$ days, after how many days the activity will become $\displaystyle 2 \times 10^{-5} \mathrm{Ci}$ ?
Official answer
(2)
$\displaystyle 35$ days
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.