Question

define hydrogen bomb in brief

Answer 1

The device is colloquially referred to as a hydrogen bomb or, an H-bomb, because it employs the fusion of isotopes of hydrogen. The first full-scale thermonuclear test was carried out by the United States in 1952; the concept has since been employed by most of the world's nuclear powers in the design of their weapons

Answer 2

An atomic bomb uses either uranium or plutonium and relies on fission, a nuclear reaction in which a nucleus or an atom breaks apart into two pieces. To make a hydrogen bomb, one would still need uranium or plutonium as well as two other isotopes of hydrogen, called deuterium and tritium

Nuclear fusion is the principle underlying hydrogen bomb. Basically in this process, lighter atoms will fuse or combine to form heavier elements. This results in a lot of energy being released.

In general, the energy made for a hydrogen bomb stems from a nuclear fission reaction that is compressed to start a secondary reaction called nuclear fusion. Hydrogen fusion is a type of nuclear fusion. Nuclear fission occurs when the atomic nucleus of an atom breaks apart or splits into lighter atomic nuclei.