Q147. A _____ is a positively charged particle with properties similar to the α-particle. Its mass is one fourth and charge is one half of that of an α-particle. It is smaller in size and carries less energy at the same velocity. Physics — NUST Mock 2 — Question 147 of 200A. Beta particle B. Gamma ray C. Neutron D. Proton Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →