1.

The \[\alpha \]-particle is identical with [CPMT 1972, 82, 86;  BHU 1984; MP PMT 1990, 91, 93; MP PET 1999]

A.                 Helium nucleus
B.                 Hydrogen nucleus
C.                 Electron
D.                 Proton
Answer» B.                 Hydrogen nucleus


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