Question

A student writes Einstein's mass energy equivalence relation as E=c²/m,where m is the mass and c is the speed of light in free space. Is the relation correct. If not establish the correct relation

Answer 1

it is not correct
the correct relationship is
E=mc^2

Answer 2

Explanation:

A student writes Einstein's mass energy equivalence relation as :

$E=\dfrac{c^2}{m}$

where

c = speed of light

m = mass

The above equation written by student is not correct. The correct relation as as follows :

$E=mc^2$

i.e. energy is equal to the product of mass and square of velocity. The above equation shows that the mass and energy of an object is interchangeable.