Nuclei questions
336 published questions with worked solutions.
- Nuclear density
- In nuclear power station, energy of uranium is used for producing _____
- The decay constant of radium is 4.28 10^ -4 per year. Its half-life will be
- The radioactivity of a certain radioactive element drops to 1/64 of its initial value in 30 seconds. Its half life is
- Which of the following is not a mode of radioactive decay?
- In the process of nuclear fusion,
- For sustained chain reaction during the fission of uranium, the most essential particle is
- A radio-isotope has a half-life of 5 years. The fraction of the atoms of this material that would decay in 15 years will be
- Half-life of Bi ^ 210 is 5 days. If we start with 50,000 atoms of this isotope, the number of atoms left over after 10 days is
- Statement 1: The density of the nuclei of all atoms is same Statement 2: It is because, density of nuclei is independent of mass...
- The radius of nucleus having 10 nucleons is 3 10^ -15 m. The nuclear radius of a nucleus with nucleon number 80 is
- The binding energy per nucleon of O ^ 16 is 7.97 MeV and that of O ^ 17 is 7.75 MeV. The energy (in MeV) required to remove a...
- The half-life of Bi ^ 210 is 5 days. What time is taken by (7/8)^ th part of the sample to decay?
- N atoms of a radioactive element emit n alpha particles per second. The half life of the element is
- The activity of a radioactive sample is measured as 9750 counts per minute at t=0 and as 975 counts per minute at t=5 minutes....
- The average life T and the decay constant , of a radioactive nucleus are related as
- The half-life (T) and the disintegration constant ( ) of a radioactive substance are related as
- If T is the half-life of a radioactive material, then the fraction that would remain after a time T2 is
- The half-life of a radioactive substance is 40 years. How long will it take to reduce to one fourth of its original amount and...
- If the binding energy per nucleon of deuteron is 1.115 MeV. Its mass defect in atomic mass unit is
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