Isobar is produced by the emission of which of the following? (1) X-ray (2) Gamma ray (3) Beta ray (4) Alpha ray

Isobar is produced by the emission of which of the following? (1) X-ray (2) Gamma ray (3) Beta ray (4) Alpha ray
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(3) Beta ray Explanation: Isobar, in nuclear physics, any member of a group of atomic or nuclear species all of which have the same mass number-that is, the same total number of protons and neutrons. In beta decay, mother and daughter nuclei are always isobars, because either a neutron is converted to a protonor a proton is converted to a neutron in the process.
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