Question

on the basis of Einstein's theory of relativity - give one example that's explained energy is convert into mass.​

Answer 1

Newton's Second Law of Motion states that ''The rate of change of momentum of an object is directly proportional to the net external (unbalanced) force applied on the object provided there is no other force acting on the system...''

This law is applicable, only when the velocity of the object is is extremely negligible or trifling as compared to the Speed of Light in Vacuum.

If the speed of light is comparable to the speed of light in vacuum then the mass of the object is relativity converted into the relativistic energy by the law of the special theory of relativity, and its calculation is given by the Lorentz Transformation factor..

<This is a very popular example required in the question...>

Answer 2

Answer:

Newton's third law of motion