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As the age of star increases...

As the age of star increases

A

Helium quantity increases

B

Helium quantity decreases

C

Helium quantity doesn.t change

D

Helium, Hydrogen both quantities increases

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The correct Answer is:
A
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AAKASH SERIES-NUCLEI-Exercise-I
  1. If a radioactive nucleus decay according to the following reaction ....

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  2. Which of the following particles is most unstable?

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  3. Which of the following are their own antiparticle?

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  4. The products of the fission of U^235 by thermal neutron are

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  5. As the age of star increases

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  6. A particle having no charge and almost no rest mass

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  7. In the nuclear reaction .6C^11 to B5^11 + beta^(+) + X what does X s...

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  8. Two identical nuclei A and B of the same radioactive element undergo b...

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  9. During (beta^-) decay (beta minus), the emission of antinenutrino par...

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  10. A nuclide A undergoes alpha - decay and another nuclide B undergoes be...

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  11. In the fission of U^235 (i) Slow neutron is absorbed by U^235 (ii)...

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  12. Which of the following statements are correct (i) Positron is predic...

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  13. Consider the following two statements A and B and identify the correct...

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  14. Consider the following statements. A, B and identify the correct choic...

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  15. Consider the following statements (A) and (B) and identify the correct...

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  16. Assertion: Free Neutron decays into proton, electron and antineutrino ...

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  17. Assertion : Nuclear forces arise from strong coulombic interactions be...

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  18. Assertion: Energy is released when heavy nuclei E undergo fission or l...

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  19. Assertion: Electron capture occurs more often than positron emission i...

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  20. Match list-I with list-II

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