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Define half life of a radioactive substa...

Define half life of a radioactive substance. Deduce an expression for it.

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R G PUBLICATION-NUCLEI-EXERCISE
  1. What is Alpha decay, Beta decay and gamma decay? Write with examples.

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  2. Deduce the equation R=R0e^(-lambdat)

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  3. Define half life of a radioactive substance. Deduce an expression for ...

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  4. Define nuclear chain reaction. Explain.

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  5. What is nuclear fission and nuclear fusion?

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  6. What is packing fraction and explain ?

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  7. What is meant by artificial radioactivity? Give some example?

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  8. State and explain the laws of radioactivity?

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  9. The half life of radioactive radon is 3.8 days. What is the time at th...

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  10. Calculate the nuclear mass density in 92U^238 Take R0=1.5 fermi and ma...

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  11. Express 16 mg mass into equivalent energy in electron volt.

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  12. Plot the binding energy per nucleon E(bn) versus the mass number A for...

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  13. What is a nuclear reactor. Describe its working with a schematic diagr...

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  14. What is fission? Give an example.

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  15. Deduce the equation R=R0e^(-lambdat)

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  16. Draw a graph of exponential decay of a radio active species.

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  17. What is half life? Deduce its relation with lambda.

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  18. Find the energy Q released in this reaction. 1H^2+1H^2 rarr Q+2He^4

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  19. What is the role of moderator in nculelar reactor?

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  20. Calculate the number of protons and neutrons in 92U^235

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