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(A) During beta-decay, a new element wit...

(A) During `beta`-decay, a new element with atomic number greater than one is obtained.
(R ) Protons and neutrons keep on changing into one another through meson.

A

If both (A) and (R ) are correct and (R ) is the correct explanation for (A).

B

If both (A) and (R ) are correct but (R ) is not the correct explanation for (A )

C

If both (A) and (R ) are incorrect.

D

If both (A) and (R ) are incorrect.

Text Solution

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The correct Answer is:
B
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OP TANDON-RADIOACTIVITY AND NUCLEAR TRANSFORMATION -Assettion Reason
  1. (A) alpha-rays have greater ionising power the beta (R ) alpha-parti...

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  2. Assertion (A) : beta-particles have greater penetrating power than alp...

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  3. (A) During beta-decay, a new element with atomic number greater than o...

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  4. Assertion (A) : The average life of a radioactive element is infinity ...

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  5. Assertion (A) : Hydrogen bomb is more powerful than atomic bomb. Rea...

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  6. (A) The archaeological studies are based on the radioactive decay of c...

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  7. (A) The reactions taking place in the sun are nuclear fusion reactions...

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  8. Assertion : In a radioactive disintegration, an electron is emitted by...

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  9. Assertion (A) : In radioactive disintegrations, .(2)He^(4) nuclei can ...

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  10. (A) Protons are better projectiles than neutrons. (R ) The neutrons ...

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  11. (A) Enrichement of U^(235) from a mixture containing more abundant U^(...

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  12. The nucleus emits beta-particles though it does't contain any electron...

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  13. (A) Any kind of exchange force helps the nucleus to be more destabilis...

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  14. Statement: Nuclide .(13)^(30)Al is less stable than .(20)^(40) Ca E...

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  15. (A) During beta-decay, a new element with atomic number greater than o...

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  16. (A) The position of an element an element in periodic in table after e...

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  17. (A) Nuclear isomers have same atomic number and same mass number but w...

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  18. Assertion (A): The emission of alpha- particles results in the format...

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  19. Assertion (A): .(92)U^(238) (IIIB)overset(-alpha)rarrAoverset(-alpha)r...

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  20. Assertion (A) : beta- particles are deflected more than alpha- particl...

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