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The percentage of quantity of a radioactive material that remains after 5 half-lives is approximately .
17
Jun
The percentage of quantity of a radioactive material that remains after 5 half-lives is approximately . The percentage of quantity of a radioactive material that remains after 5 half-lives is approximately . June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter 14 - Nuclear Physics and Radioactivity , Part 2 ,
An accident occurs in a laboratory in which a large amount of a radioactive material, having a half life of 20 days, becomes embedded in the floor and walls so that the level of radiation is 32 times the permissible level. The laboratory can be safely occupied after
17
Jun
An accident occurs in a laboratory in which a large amount of a radioactive material, having a half life of 20 days, becomes embedded in the floor and walls so that the level of radiation is 32 times the permissible level. The laboratory can be safely occupied after An accident occurs in a laboratory in [...]
In a radioactive series, .92U238 charges to .82Pb206 through n1(α-decay processes) and n2(β−decay processes)
17
Jun
In a radioactive series, .92U238 charges to .82Pb206 through n1(α-decay processes) and n2(β−decay processes) .92U238 charges to .82Pb206 through n1(α-decay processes) and n2(β−decay processes) In a radioactive series June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter 14 - Nuclear Physics and Radioactivity , Part 2 ,
Consider a radioactive material of half-life 1.0 minute. If one of the nuclei decays now, the next one will decay
17
Jun
Consider a radioactive material of half-life 1.0 minute. If one of the nuclei decays now, the next one will decay Consider a radioactive material of half-life 1.0 minute. If one of the nuclei decays now the next one will decay June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter 14 - Nuclear Physics [...]
Which of the following assertions are correct ? (i) A neutron can decay to a proton only inside a nucleus
17
Jun
Which of the following assertions are correct ? (i) A neutron can decay to a proton only inside a nucleus Which of the following assertions are correct ? (i) A neutron can decay to a proton only inside a nucleus June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter 14 - Nuclear Physics [...]
In a radioactive decay, a nucleus is transformed into another with the emission of a positron. In this process the neutron-proton ratio
17
Jun
In a radioactive decay, a nucleus is transformed into another with the emission of a positron. In this process the neutron-proton ratio a nucleus is transformed into another with the emission of a positron. In this process the neutron-proton ratio In a radioactive decay June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter [...]
In which of the following decays the element does not change ?
17
Jun
In which of the following decays the element does not change ? In which of the following decays the element does not change ? June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter 14 - Nuclear Physics and Radioactivity , Part 2 ,
The sun radiates energy in all directions. The average radiations received on the earth surface from the sun is 1.4 kilowatt/m^2. The average earth-sun distance is 1.5×10^11 meters. The mass lost by the sun per day is.
17
Jun
The sun radiates energy in all directions. The average radiations received on the earth surface from the sun is 1.4 kilowatt/m^2. The average earth-sun distance is 1.5×10^11 meters. The mass lost by the sun per day is. 200MeV of energy may be obtained per fission of U235. A reactor is generating 1000 kW of power. [...]
If 5g of .235U is completely destroyed in a reactor, the energy released would be
17
Jun
If 5g of .235U is completely destroyed in a reactor, the energy released would be If 5g of .235U is completely destroyed in a reactor the energy released would be June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter 14 - Nuclear Physics and Radioactivity , Part 2 ,
In a radioactive decay neither the atomic number nor the mass number changes. Which of the following particles is emitted in the decay?
17
Jun
In a radioactive decay neither the atomic number nor the mass number changes. Which of the following particles is emitted in the decay? In a radioactive decay neither the atomic number nor the mass number changes. Which of the following particles is emitted in the decay? June 17, 2021 Category: Cengage NEET by C.P Singh [...]