Olimjon Kodirov,Ahmadjon Boydedaev; N. Remziye Ergül
Description:
Einstein’s Special Theory of Relativity (SRT) is examined the behaviour of a quantum of light in the vacuum.According to second postulate of SRT, the speed of a quantum of light is an universal constant value. In this paper weshowed another derivation of equations for mass and energy of a particle on the second postulate of theory of specialrelativity.