Nuclei

JEE Advanced · Physics · 28 past questions

6 of 28 · show all

1. Q2 2023 Paper 2

   In a radioactive decay process, the activity is defined as $A = -\frac{dN}{dt}$, where $N(t)$ is the number…

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2. Q6 2021 Paper 1

   A heavy nucleus $Q$ of half-life 20 minutes undergoes alpha-decay with probability of 60% and beta-decay with…

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3. Q9 2019 Paper 1

   In a radioactive sample, $^{40}_{19}K$ nuclei either decay into stable $^{40}_{20}Ca$ nuclei with decay…

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4. Q19 2013 Paper 1

   A freshly prepared sample of a radioisotope of half-life 1386 $s$ has activity $10^3$ disintegrations per…

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5. Q23 2011 Paper 1

   The activity of a freshly prepared radioactive sample is $10^{10}$ disintegrations per second, whose mean…

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6. Q24 2010 Paper 2

   To determine the half life of a radioactive element, a student plots a graph of… (with a figure)

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