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As the age of star increases...

As the age of star increases

A

Helium quantity increases

B

Helium quantitiy decreases

C

Helium quantity does not change

D

Helium, Hydrogen both quantities increases

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The correct Answer is:
A
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NARAYNA-NUCLEAR PHYSICS-C.U.Q
  1. Average K.E of thermal neutron is of the order of (in KeV)

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  2. Inside the sum

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  3. As the age of star increases

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  4. In the carbon cycle of nuclear fussion carbon acts like a

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  5. In a fusion process a proton and neutron combine to give a deuterium n...

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  6. The binding energies of the atom of elements P and Q are E(P) and E(Q)...

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  7. The (B.E)/(A) for deutron and an alpha-particle are X(1) and X(2) resp...

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  8. If Q(1) and Q(2) are the energies released in the fusion of hydrogen i...

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  9. Fusion reaction is initiated with the help of

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  10. In an exo-ergic reaction the binding energies of reactants and product...

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  11. In an endo-ergic reaction the binding energies of reactants and produc...

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  12. Among the following reactions which is impossible

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  13. If the nuclei of masess X and Y are fused together to form a nucleus o...

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  14. Fusion reactions take place at about

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  15. The percentage of mass lost during nuclear fusion is

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  16. Fusion reaction takes place at high temperature because

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  17. Among the following true option is

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  18. Fusion reaction takes place at high temperature because

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  19. In the carbon cycle from which stars hotter than the sun obtain their ...

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  20. Source of solar energy can be said to be due to natural fusion in whic...

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