Using the special theory of relativity's postulates, Einstein derived the link between mass and energy and focused on a single mass-energy conservation law. Einstein postulated that a specific mass m is equivalent to the energy provided by the equation . Here, represents the speed of light in empty space.
Einstein's mass-energy relation is the name given to the aforementioned relationship. The opposite is also accurate. In other words, the mass determined by the equation is comparable to certain energy .
The validity of Einstein's mass-energy relationship has been amply proved by numerous experiments. The process of annihilation occurs when an electron and a positron are extremely near to one another. During this process, the masses are converted into energy. One type of energy released throughout the process is gamma rays.