Nuclei

Bihar Board Class 12 · Physics · 30 past questions

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1. Q7 2024 Set A

   Half-life of radioactive substance is

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2. Q8 2024 Set A

   S.I. unit of decay constant is

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3. Q13 2023 Set F

   The half-life of a radioactive isotope ($^{210}$Bi) is 5 days. The fraction of the nuclei undecayed at the…

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4. Q15 2022 Set I

   The relation between half-life time $T_{1/2}$ and decay constant is

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5. Q21 2021 Set A

   Which of the following is correct for radioactive element ?

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6. Q23 2019

   The time in which radioactive substance becomes half of its initial amount is called

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7. Q24 2019

   The decay constant of a radioactive substance is $5.2\times10^{-3}$ per year.

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8. Q28 2017

   Time during which the amount of radioactive substance becomes half of its initial amount is called.

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