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An open container has net 10 gm mass...

An open container has net 10 gm mass of a radioactive material. The net mass in the container after two mean lives is approximately.

A

1.35 gm

B

2.5 gm

C

10 gm

D

5 gm

Text Solution

Verified by Experts

The correct Answer is:
C
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MOTION-RADIOACTIVITY & NUCLEAR PHYSICS-Exercise-2
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  2. An open container has net 10 gm mass of a radioactive material....

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  3. What is the probability of a radioactive nucleus to survive one mean l...

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  4. Ratio of initial active nuclei in two different sample is 2:3 Th...

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  5. Let Fpp, Fpn and Fnn denote the magnitudes of the nuclear force by a p...

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  6. The radioactivity of sample is R(1) at a time T(1) and R(2) at a time ...

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  7. Atomic weight of a radioactive element is M(W) gm. Radioactivity of m ...

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  8. The activity of a radioactive sample is measured as 9750 counts per mi...

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  9. Initial ratio of active nuclei in two different sample is 2: 3 ...

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  10. A radioactive sample disintegrates by 10% during one month. How much f...

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  11. 7//8 fraction of a sample disintegrate in t time How much time i...

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  12. For a radioactive sample, at given instant, number of active nuclei is...

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  13. A radioactive material decays by simulataneous emission of two particl...

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  14. The correct weak nuclear interaction is :

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  15. A radioactive nucleus .(Z) X^(A) emite 3 alpha- particles and 5 beta...

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  16. Which statement about radioactive radiations is true

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  17. Energy released by 1kg . U^(235) when it is fissoned

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  18. When a beta-particle is emitted from a nucleus, the neutron-proton rat...

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  19. A nuclear fission is given below A^(240) to B ^(100) + C^(140)...

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  20. How much energy will be released when 10 kg of U^(235) is compl...

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