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Which of the following are used as contr...

Which of the following are used as control rods in a nuclear reactor ?

A

cadmium

B

graphite

C

krypton

D

plutonium

Text Solution

Verified by Experts

The correct Answer is:
a

In nuclear reactors cadmium rods are used as control rods.
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NCERT FINGERTIPS ENGLISH-NUCLEI-Assertion And Reason
  1. Which of the following are used as control rods in a nuclear reactor ?

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  2. Assertion:The whole mass of the atom is concentrated in the nucleus. ...

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  3. Assertion : The radius of a nucleus determined by electron scattering ...

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  4. Assertion:Isotopes of an element can be separated by using a mass spec...

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  5. Assertion:When a nucleus is in an excited state, it can make a transit...

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  6. Assertion:Binding energy per nucleon is nearly constant for element i...

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  7. Assertion:Nuclear force between neutron-neutron, proton-neutron and pr...

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  8. Assertion:A free neutron is unstable Reason : Free neutron disintegr...

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  9. Assertion:The detection of neutrinos is extremely difficult . Reason...

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  10. Assertion:An alpha-particle is emitted when uranium 238 decays into th...

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  11. Assertion:The mass of beta-particles when they are emitted is higher t...

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  12. Assertion:Neutrons penetrate matter more readily as compared to proton...

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  13. Assertion:There occurs a chain reaction when uranium is bombarded wit...

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  14. Assertion:Fusion of hydrogen nuclei into helium nuclei is the source o...

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  15. Assertion:Nuclear sources will give a million times larger energy than...

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  16. Assertion:Naturally , thermonuclear fusion reaction is not possible on...

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