Online GK Series

This site is dedicated to the aspirants of competitive exams SSC, UPSC, Railways, Postal Assistants, Bank, GATE and NET

Connect with Universities & Study Abroad Instantly Search University

Q.

The alpha particle carries two positive charge. Its mass is very nearly equal to that of

A two protons
B an atom of helium
C sum of masses of two positrons and two neutrons
D two positrons as each positron carries a single positive charge
Answer & Explanation
Option: [B]

Your Valuable Comments Please...

Important EBooks for Competitive Exams

VIEW ALL