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The ratio of molecular mass of two radio...

The ratio of molecular mass of two radioactive substances is `3//2` and the ratio of their decay cosntatnt is `4//3`. Then. The ratio of their initial activity per mole will be

A

`2`

B

`8/9`

C

`4/3`

D

`9/8`

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Verified by Experts

The correct Answer is:
C
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RESNICK AND HALLIDAY-THE NUCLEUS-PRACTICE QUESTIONS (Single Correct Choice Type)
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  2. Half-lives of two radioactive elements A and B are 20 minutes and 40 m...

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  3. The ratio of molecular mass of two radioactive substances is 3//2 and ...

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  4. An unstable nucleus decays in three different modes, each mode having ...

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  5. The decay constant of a radioactive material represents the fraction o...

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  6. Samples of two different isotopes, X and Y. Both contain the same numb...

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  7. A particle isotope has a half life of 10 min.What does that statement ...

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  8. A radioactive substance is dissolved in a liquid and the solution is h...

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  9. Nuclear reactions can occur spontaneously when

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  10. A nucleus with mass number 220 initially at rest emits an alpha-partic...

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  11. During a negative beta decay,

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  12. If .(92)U^(238) changes to .(85)At^(210) by a series of alpha-and beta...

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  13. Ten grams of ^57 Co kept in an open container beta-decays with a half-...

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  14. Which one of the following combinations of radioactive decay results i...

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  15. If a beam consisiting of alpha,beta and gamma radiation is passed thro...

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  16. A gamma- ray photon is emitted

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  17. An archaeologist extracts a sample of carbon from an ancient ax handle...

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  18. When a U-235 nucleus absorbs a neutron and underfoes nuclear fission, ...

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  19. A star initially has 10^40 deuterons. It produces energy via the proce...

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  20. Which of the following is a correct statement?

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