Pick out the correct statement.
(A) Positron is the antiparticle of electron
(B) In α-decay, the ratio of neutron to proton decreases
(C) Ionising power of β-rays is higher than that of α-rays
(D) Speed of α-rays is more than that of γ-ray

1 Answer

Answer :

(A) Positron is the antiparticle of electron

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