### Journals Information

**
Universal Journal of Physics and Application Vol. 5(3), pp. 549 - 552 Reprint (PDF) (147Kb) **

## A REBUTTAL TO AJAY SHARMA_S PAPER ON E = Amc^{2}

AUTHOR(S) INFORMATION: Georges A.

**ABSTRACT**

In a seminal paper published in 1905 [1] Einstein produced a very original derivation of the variation of mass depending of the variation of a body's energy. The conclusion of Einstein's paper [1] is that “If a body gives off the energy L in the form of radiation, its mass diminishes by L/c^{2}”. Einstein derives this very interesting relationship by applying the results of his other 1905 seminal paper[2] to a body that emits[2] “two plane waves of light” of equal energy L, arranged to be at 180^{0} with respect to each other such that there is no recoil for the emitting body after the radiation was emitted. In the following note we will refute the errors in the Ajay Sharma [3] paper that claims that the result of electromagnetic radiation can be “mass increase” under certain circumstances (see equations (13) and (14) at the beginning of paragraph 4 ). In the following we will be using Einstein notation employed in [1].