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The phenomenon of pair production is the...

The phenomenon of pair production is the

A

formation of an electron and a position from `gamma`-rays

B

ejection of an electron from a metal surface when exposed to ultra-violet light

C

ejection of an electron form a nucleus

D

ionization of a neutral atom

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The correct Answer is:
A
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CP SINGH-NUCLEAR PHYSICS AND RADIO ACTIVITY-EXERCISES
  1. In nuclear reactions, we have the conservation of

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  2. In the alpha-decay process occuring in different types of nuclei at re...

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  3. The phenomenon of pair production is the

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  4. Following process is known as hv rarr e^(+) +e^(-)

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  5. To produce an electron-position pair, the minimum energy of gamma-ray ...

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  6. A gamma ray photon creates an electron-positron pair. If the rest mass...

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  7. Which of the following is correct regarding nuclear fission? (i) The...

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  8. During a nuclear fission reaction,

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  9. Enriched uranium is better as a fuel for a nuclear reactor because it ...

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  10. A slow neutron(n) is captured by a .(92)U^(235) nucleus forming a high...

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  11. Complete the equation for the following fission process .92 U^235 .0 n...

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  12. Let m(p) be the mass of a poton , M(1) the mass of a (10)^(20) Ne nucl...

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  13. Choose the correct option (a) Atom bomb is based on nucleus fission ...

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  14. The power obtained in a reactor using U^(235) disintergration is 1000k...

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  15. (a) What are thermal neutrons in the context of nuclear fission ? (b...

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  16. Fast neutrons can easily be slowed down by

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

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  18. When .92 U^235 undergoes fission, 0.1 % of its original mass is change...

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  19. In a fission process, nucleus A divides into two nuclei B and C, their...

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  20. Energy released in the fission of a single .92 U^235 nucleus is 200 Me...

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