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The rate of disintegration at a given in...

The rate of disintegration at a given instant, is directly proportional to the number of atoms present at that instant. This is the statement of

A

law of radioactive decay

B

half life

C

law of radioactive transformation

D

group displacement law

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The correct Answer is:
A
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NIKITA PUBLICATION-ATOMS, MOLECULES AND NUCLEI-MCQs
  1. Which of the following of radioactive material is a measure of its ins...

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  2. The decay constant of a radioactive sample

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  3. The rate of disintegration at a given instant, is directly proportiona...

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  4. The time required for the atoms of that element to decrease to half th...

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  5. The half-life of a radioactive substance depends upon:

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  6. The mathematical equation of law of radioactive decay is

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  7. The relation between half life period and decay constant is

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  8. A radioactive decay rate of 1 curie represents

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  9. When a nucleus undergoes radioactive decay, its new mass number is

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  10. The decay constant of a radioactive element is definded as the recipro...

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  11. The half life of a radioactive element is T and its initial activity a...

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  12. The decay constant of the end product of a radioactive series is

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  13. Half-life-speed of lead is:

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  14. The half life of 1 gm of a radioactive element of atomic weight M is T...

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  15. Rate of disintegration per atom is called

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  16. The value of decay constant is independent of

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  17. Which of the following is the unit of activity of a radiactive element...

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  18. Half-life of radioactive element depend upon

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  19. N atoms of a radioactive substance emit n alpha-particles per second. ...

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  20. If the half life of radium is 1620 years then its decay constant is

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