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प्रश्न
In a gamma ray emission from nucleus :
विकल्प
only the number of protons change
the number of protons and neutrons, both change
there is no change in the number of protons and the number of neutrons
only the number of neutrons change
उत्तर
there is no change in the number of protons and the number of neutrons
ϒ - radiation are em radiation
`therefore` no change in the number of protons and number of neutrons.
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