Positron has nearly the same mass as that of :

proton

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neutron

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electron

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α

-particle

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Solution

The correct option is C electron
The positron or antielectron is the antiparticle or the antimatter counterpart of the electron. The positron has an electric charge of +1 e and has the same mass as an electron.

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The subatomic particle which has no charge but mass nearly equal to that of a proton is:

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