MPPSC 2014 General Studies Solved Paper-1

(B) A nuclear weapon is an explosive device that derivesi ts destructive force from nuclear reactions, either fission(fission bomb) or from acombination of fission and fusion reactions(thermonuclear bomb). Both the bomb types release large quantities of energy from relatively small amounts of matter. The most commonly used fissile materials for nuclear weapon application shave been uranium-235 and plutonium-239.