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Co^(60) has half-life of 5.3 years. Find...

`Co^(60)` has half-life of `5.3` years. Find the number of half-lives for `7//8` of the orignal sample to disintergrate.

A

4.6 yrs

B

9.2 yrs

C

10.6 yrs

D

15.9 yrs

Text Solution

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The correct Answer is:
d
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OP TANDON-RADIOACTIVITY AND NUCLEAR TRANSFORMATION -OBJ - A
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  2. Which is ture about decay constant (lambda)?

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  3. Which of the following is not correct?

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  4. Correct order of radioactivity is:

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  5. At radioactive equilibrium, the ratio between two atoms of radioactive...

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  6. In the sequence of the following nuclear reaction, X(98)^(238) overs...

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  7. Co^(60) has half-life of 5.3 years. Find the number of half-lives for...

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  8. Which of the following "is"//"are" correct? a)alpha-rays are more pene...

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  9. Select the wrong statement:

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  10. In a nuclear reactor, heavy water is used

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  11. The correct starting material and product of different disintegration ...

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  12. Which of the following is/are not ture?

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  13. Which of the following is/are correct?

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  14. Consider the following nuclear reactions: (1) .(7)^(14)N + .(2)^(4)H...

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  15. Which of the following statements is/are correct

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  16. Which of the following statements is/are correct

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  17. A nuclide has mass number (A) and atomic number (Z). During a radioact...

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  18. In the decay process: A overset(-alpha)(to) B overset(-alpHa)(to) C ...

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  19. The nuclide X undergoes alpha-decay and other nuclide Y, beta^(-) deca...

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  20. Fill in the blank space with a suitable answer selected from the list ...

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