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The t(1//2) for .^(14)C in (i) .^(14)CO(...

The `t_(1//2)` for `.^(14)C` in (i) `.^(14)CO_(2)`, (ii) `.^(14)C_(6)H_(12)O_(6)`,
(iii) Coal containing `.^(14)C`,
(iv) Cellulose conatining `.^(14)C` os:

A

more in `.^(14)CO_(2)`

B

more in coal containing `.^(14)C`

C

more in `.^(14)C_(6) H_(12) O_(6)`

D

Same in all species.

Text Solution

Verified by Experts

The correct Answer is:
`(d)`
`t_(1//2)` is independent of all external factors and is constant for a given species.
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P BAHADUR-RADIO ACTIVITY-Exercies 3A
  1. The isotope used to find the age of series:

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  2. In the carbon cycle form which hot starts obain their energy, the .(6...

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  3. The t(1//2) for .^(14)C in (i) .^(14)CO(2), (ii) .^(14)C(6)H(12)O(6), ...

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  4. The radioactivity of a sample is R(1) at a time T(1) and R(2) at a ti...

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  5. Which nuclear raction is not correct?

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  6. The parent nucleus of (4n + 3) seires is:

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  7. If 5g pf a radioactive substanc ehas t(1//2) = 12hr, 20g of the same s...

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  8. A radioactive istope having a half-line of 3 day was received after 12...

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  9. Radioactive material is deacign with t(1//2) = 30 days on being, separ...

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  10. A radioactive substance has a constant actity of 2000 disintegraion/mi...

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  11. The energy released during the fussion of 1 kg uranium is a)9 xx 10^(2...

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  12. Consider the following process of decay, .(92)^(234)U rarr .(90)^(23...

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  13. The nucleus and an atom can be assumed to be spherical. The relation ...

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  14. A freshly prepared radioactive source to half-life 2 hr, emits radiati...

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  15. Two radio-isotopes P and Q of atomic weight 10 and 20 respetively are ...

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  16. Half-life on an element is 't' secound. In t//2 second the fraction o...

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  17. A radiioactive element X, decays by the sequence and with half-lives, ...

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  18. A radioactive element X has an atomic number of 100. It decays directl...

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  19. When .(17)Cl^(35) undergoes (n,p) reaction, the radioisotope formed is...

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  20. A radioactive isotope has initial activity of 28 dpm Its activity is r...

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