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The decay constant lambda of the radioac...

The decay constant `lambda` of the radioactive sample is probaility of decay of an atom in unit time, then

A

`lambda` decrease as atoms become older

B

`lambda` increases as the age of atoms increases

C

`lambda` is independent of the age

D

behaviour of `lambda` with time depends on the nature of the activity

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The correct Answer is:
C
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CP SINGH-NUCLEAR PHYSICS AND RADIO ACTIVITY-EXERCISES
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  2. The number of beta particles emitter by radioactive sustance is twice ...

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  3. The decay constant lambda of the radioactive sample is probaility of d...

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  4. Some radioactive nucleus may emit

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  5. The correct order of ionising capcity of alpha, beta and gamma-rays is

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  6. Which of the following is in the increasing order for penetrating powe...

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  7. A radiaoactive nucleus (initial mass number A and atomic number Z emit...

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  8. Consider a radioactive material of half-life 1.0 minute. If one of the...

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  9. In a radioactive series, .(92)U^(238) charges to .(82)Pb^(206) through...

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  10. The decay constant of a radiaoactive sample is lambda . The half life ...

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  11. The decay constant lambda of the radioactive sample is probaility of d...

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  12. An accident occurs in a laboratory in which a large amount of a radioa...

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  13. The percentage of quantity of a radioactive material that remains afte...

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  14. Three fourth of the active decays in a radioactive sample in 3//4 sec....

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  15. Let T be the mean life of a radioactive sample. 75% of the active nucl...

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  16. A fraction f(1) of a radioactive sample decays in one mean lie and a f...

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  17. A radioactive nuclide can decay simultaneously by two different proces...

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  18. In a sample of radioactive material, what fraction of initial number o...

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  19. In a sample of radioactive material, what percentage of the initial nu...

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  20. The half life of Radon is 3.8 days. Calculate how much of 15 milligram...

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