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Name and define, the SI unit for the 'ac...

Name and define, the SI unit for the 'activity' of a given sample of radioactive nuceli .

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The total decay rate `R` of a sample of one or more radionuclides is called the activity of that sample. The `SI` unit for activity is becqueral.
`1` becqueral `=1 Bq=1` decay per second.
Graph. The graph between the activity of a radioactive species and time is shown in Fig.

Time taken for acitivity of a radioactive isotope to reduce to `(1)/(8) th` of its initial value.
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RESONANCE ENGLISH-NUCLEAR PHYSICS-Exercise -3 Part-III CBSE PROBLEMS (LAST 10 YEARS)
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  2. What do you understand by isotopes, isobars and isotones? Explain with...

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  4. Two nuclei have mass numbers in the ratio 1 : 2. What is the ratio of ...

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  5. A radioactive nucleus undergoes a series of deacy according to the sch...

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  6. Name and define, the SI unit for the 'activity' of a given sample of r...

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  7. Draw a plot of potential energy of a pair of nucleons as a function of...

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  8. (a) Write symbolically the beta-decay process of ""(15)^(32)P. (b) ...

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  9. How is the size of nucleus experimentally determined ? Write the relat...

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  10. State the law of redioactive decay. Plot a graph showing the number (N...

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  11. What is the effect on neutron to proton ratio in a nucleus when (i) an...

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  12. A nucleus undertgoes beta-decay. How does its (i) mass number (ii) at...

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  13. How are the radius of nucleus r and mass number (A) related to each ot...

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  14. For radioactive disintegration of a radioactive substance, show that ...

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  15. (a) Why photoelectric effect cannot be explained on the basis of wave ...

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  16. An element A decays into an element C by a two step process A to B + ....

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  17. Write the law of radioavtive decay. Decay constant of a radioactive su...

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  18. For the past some time, Aarti had been observing some erratic body mov...

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  19. The decay constant of a radioactive substance is 0.693 per minute. Wha...

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  20. From the relation R=R(0)A^(1//3) where R(0) is a constant and A is the...

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