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The proper rays for radio carbon dating ...

The proper rays for radio carbon dating are

A

UV rays

B

IR rays

C

Cosmic rays

D

X-rays

Text Solution

Verified by Experts

The correct Answer is:
C
Cosmic ray neutrons convert nitrogen of the atmosphere into radioactive C-14
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A scientist has a house just beside a busy highway. He collects leaves from some plants growing in his garden to do radio-carbon dating ( to estimate the age of the plant by estimating the amount of a radioisotope of carbon in its tissues ). Surprisingly the radio-carbon dating shows that the plant is a few thousand years old. (a) Was the result of the radio-carbon dating wrong or can you propose a reason for such an observation ? (b) What simple experiment can be done to test the reason that you have proposed ?

The isotope of carbon used in radiocarbon dating is

Radioactive Dating

Which of the following ages cannot be determined by radioactive carbon dating?

Which one of the following statements is true concerning the radioisotope carbon -14 that is used in carbon dating?

The radio labelled carbon in carbon dioxide supplied to potato plants in an experiment was seen in the tuber eventually. Trace the movement of the labelled carbon dioxide.

DINESH PUBLICATION-NUCLEAR AND RADIO CHEMISTRY-Revision Questions from Competitive Exams
  1. C^(14) is

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  2. Which one of the following radioisotopes is used in the treatment of b...

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  3. The proper rays for radio carbon dating are

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  4. The nuclear reaction ""(29)^(63)Cu +""(2)^(4)He rarr ""(17)^(37)Cl +...

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  5. Unstable substance exhibity higher radioactivity due to

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  6. The reactor used to convert stable form to fissile form is

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  7. Which of the following are easily stopped by air ?

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  8. beta- particle in radioactivity is emitted by:

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  9. The phenomenon of radioactivity is associated with a)Decay of nucleus...

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  10. The first artifical disintegration of an atomic nucleus was achieved b...

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  11. The radioisotope , tritium (""(1)^(3)H) has a half-life of 12.3 years....

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  12. The radioactive nuclide .(90)^(234) Th shows two successive beta- dec...

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  13. The half life of radioactive isotope is 3 hour. If the initial mass of...

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  14. How may alpha- and beta- particles will be emitted when .(90)Th^(232) ...

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  15. A overset(-2beta)to overset(-alpha)to C. Relation between A and C is

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  16. It t(1//2) of A is 1000 yrs, then 'A' left after t=2000 years

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  17. If N(0) =1 gm then after how many half lives N t will be 0.25 gm ?

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  18. ""(92)^(235)U+X to Ba +Kr +3 ""(1)^(0)n X is

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  19. Alpha particles are

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  20. Most radioactive is

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