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A radioactive sample decays by ' beta -e...

A radioactive sample decays by ' `beta` -emission. In first 2 seconds, `n beta` -particles are emitted and in next 2 seconds, `0.25 n beta` -particles are emitted. The half life of radioactive NUCLEI (in second) is

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CENGAGE PHYSICS-NUCLEI-QUESTION BANK
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  7. In the process of nuclear fission of 1g of uranium, the mass lost is 0...

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  8. 200 (MeV) of energy can be obtained per fission. In a reactor generati...

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  9. A nucleus of mass number 220 , initially at rest, emits an alpha -part...

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  10. A radioactive material decays by simultaneous emission of two particle...

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  11. In an alpha -decay, the kinetic energy of alpha particle is 48 (MeV) a...

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  12. The nuclear radius of a certain nucleus is 7.2 fm and it has charge of...

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  13. For a substance, the average life for alpha -emission is 3240 years an...

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  14. A nucleus with mass number 220 , initially at rest, emits an alpha -pa...

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  15. A radioactive sample S(1) having the activity A(1) has twice the numbe...

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  16. Two radioactive elements R and S disintegrate as R rarr P+alpha , lamb...

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  17. The radioactive sources A and B, initially containing the same number ...

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  18. The graph represents the decay of a newly-prepared sample of radioacti...

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  19. For a substance, the average life for alpha -emission is 1620 years an...

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  20. A radioactive sample decays by ' beta -emission. In first 2 seconds, n...

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