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A mixture of ""^(239)Pu and ""^(240)Pu h...

A mixture of `""^(239)Pu and ""^(240)Pu` has a specific activity of `6 xx 10^(9)` dis/s/g. The half lives of the isotopes are `2.44 xx 10^(4)` y and `6.08 xx 10^(3)` y respectively. Calculate the isotopic composition of this sample.

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The correct Answer is:
`""^(239)Pu = 45.1 %, ""^(240)Pu = 54.9 % `
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MOTION-RADIOACTIVITY -EXERCISE - 3
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  2. Potassium having atomic mass = 39.1 u contains 93.10 mass % ""^(39)K, ...

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  3. A mixture of ""^(239)Pu and ""^(240)Pu has a specific activity of 6 xx...

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  4. In a nature decay chain series starts with ""(90)Th^(232) and finally ...

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  6. A sample of Uraninite, a Uranium containing mineral was found on analy...

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  7. .(92)^(238)U by successive radioactive decays changes to .(82)^(206) P...

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  8. A sample pitch blende is found to contain 50% Uranium (U^(238)) and 2....

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  9. A 10 mL sample of a solution containing 1.0 xx 10^(–7) Ci of {:(3),(1...

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  10. Nuclei of a radioactive element A are being produced at a constant rat...

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  11. Nuclei of a radioactive element 'A' are being produced at a constant r...

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  12. Nuclei of a radioactive element 'A' are being produced at a constant r...

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  14. Mass defect in the nuclear reactions may by expressed in terms of the ...

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  15. 1 Curie is equal to.

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  16. {:(14),(6):}C decays by emission of .

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  17. Emission of a beta - particle by a nuclide results in the formation o...

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  18. The number of alpha and beta - particles emitted, when the following...

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  19. The nuclides with same difference of number of neutrons and number of ...

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  20. When {:(30),( 15):}P emits a position, the daughter nuclide formed is ...

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