Chapter 30 – Nuclear Physics
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The fraction of a radioactive material which remains active after time t is 9/16. The fraction which remains active after time t/2 will be .
05
Jun
The fraction of a radioactive material which remains active after time t is 9/16. The fraction which remains active after time t/2 will be . The fraction of a radioactive material which remains active after time t is 9/16. The fraction which remains active after time t/2 will be June 5, 2021 Category: Cengage JEE [...]
A stationery thorium nucleus (A=200, Z=90) emits an alpha particle with kinetic energy Eα. What is the kinetic energy of the recoiling nucleus
05
Jun
A stationery thorium nucleus (A=200, Z=90) emits an alpha particle with kinetic energy Eα. What is the kinetic energy of the recoiling nucleus A stationery thorium nucleus (A=200 Z=90) emits an alpha particle with kinetic energy Eα. What is the kinetic energy of the recoiling nucleus June 5, 2021 Category: Cengage JEE Mains Physics by [...]
After an interval of one day, 1/16th initial amount of a radioactive material remains in a sample. Then, its half-life is .
05
Jun
After an interval of one day, 1/16th initial amount of a radioactive material remains in a sample. Then, its half-life is . 1/16th initial amount of a radioactive material remains in a sample. Then After an interval of one day its half-life is June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , [...]
A sample of a radioactive element has a mass of 10 g at an instant t=0. The approximate mass of this element in the sample after two mean lives is .
05
Jun
A sample of a radioactive element has a mass of 10 g at an instant t=0. The approximate mass of this element in the sample after two mean lives is . A sample of a radioactive element has a mass of 10 g at an instant t=0. The approximate mass of this element in the [...]
Samples of two radioactive nuclides, X and Y, each have equal activity A at time t=0. X has a half-life of 24 years and Y a half-life of 16 years. The samples are mixed together. What will be the total activity of the mixture at t=48 years?
05
Jun
Samples of two radioactive nuclides, X and Y, each have equal activity A at time t=0. X has a half-life of 24 years and Y a half-life of 16 years. The samples are mixed together. What will be the total activity of the mixture at t=48 years? each have equal activity A at time t=0. [...]
The half-life of a certain radioactive isotope is 32 h. What fraction of a sample would remain after 16 h?
05
Jun
The half-life of a certain radioactive isotope is 32 h. What fraction of a sample would remain after 16 h? The half-life of a certain radioactive isotope is 32 h. What fraction of a sample would remain after 16 h? June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 30 - [...]
The rest mass of a deuteron is equivalent to an energy of 1876 MeV, that of a proton to 939 MeV, and that of a neutron to 940 MeV.
05
Jun
The rest mass of a deuteron is equivalent to an energy of 1876 MeV, that of a proton to 939 MeV, and that of a neutron to 940 MeV. and that of a neutron to 940 MeV. that of a proton to 939 MeV The rest mass of a deuteron is equivalent to an energy [...]
A newly prepared radioactive nuclide has a decay constant λ of 10^-6 s^-1. What is the approximate half-life of the nuclide?
05
Jun
A newly prepared radioactive nuclide has a decay constant λ of 10^-6 s^-1. What is the approximate half-life of the nuclide? A newly prepared radioactive nuclide has a decay constant λ of 10^-6 s^-1. What is the approximate half-life of the nuclide? June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter [...]
The activity of a radioactive sample is 1.6 curie, and its half-life is 2.5 days. Its activity after 10 days will be.
05
Jun
The activity of a radioactive sample is 1.6 curie, and its half-life is 2.5 days. Its activity after 10 days will be. and its half-life is 2.5 days. Its activity after 10 days will be. The activity of a radioactive sample is 1.6 curie June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma [...]
The initial activity of a certain radioactive isotope was measured as 16000 counts min^−1. Given that the only activity measured was due to this isotope and that its activity after 12h was 2100 counts min^−1, its half-life, in hours, is nearest to [Given loge(7.2)=2].
05
Jun
The initial activity of a certain radioactive isotope was measured as 16000 counts min^−1. Given that the only activity measured was due to this isotope and that its activity after 12h was 2100 counts min^−1, its half-life, in hours, is nearest to [Given loge(7.2)=2]. The half-life of a radioactive decay is x times its mean [...]