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Standard XII
Chemistry
Properties of Alpha, Beta and Gamma Rays
What is pair ...
Question

What is pair production and annihilation of matter?

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Solution

The conversion of a photon into an electron-positron pair on its interaction with the strong electric field surrounding a nucleus is called pair production. The converse of pair production in which an electron and position combine to produce a photon is known as annihilation of matter.

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Standard XII Chemistry
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