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The critical mass of a fissionable urani...

The critical mass of a fissionable uranium `-235` can be reduced by

A

adding impurities

B

heating material

C

surrounding it by a neutron-reflecting material

D

surrounding it by a neutron-absorbing material

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The correct Answer is:
C
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NARAYNA-NUCLEAR PHYSICS-C.U.Q
  1. The critical mass of a fissionable material is

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  2. For fast chain reaction, the size of U^(235) block, as compared to its...

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  3. The critical mass of a fissionable uranium -235 can be reduced by

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  4. Nuclear energy is released in fission since binding energy per nucleon...

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  5. In a critical chain reaction

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  6. Among the following one is wrong

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  7. When 1 gm of U^(235) is completely annihilated energy liberated is E(1...

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  8. In the process of fission, the binding energy per nucleon

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  9. Assertion (A) : Fragments produced in the fission of U^(235) are radio...

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  10. The product of the fission of U^(235) by thermal neutron are

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  11. Consider the following statements A and B. Identify for correct in the...

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  12. The process of fission is responsible for the release of energy in

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  13. The working principle in atom bomb is

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  14. Heavy water is

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  15. Nuclear reactor is surrounded by concrete walls to

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  16. The operation of a nuclear reactor is said to be critical, if the mult...

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  17. Cadmium and Broron rods are used in a nuclear reactor to

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  18. The coolant in the nuclear reactor is

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  19. Substance used to slow down the fast neutrons released during nuclear ...

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  20. If the neutrons reproduction factor K is a) greater than 1 the fiss...

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