Question

The basic theorem/principle used to obtain mass-energy relation is _____________

(a) Heisenberg’s Uncertainty Principle

(b) Work-Energy Theorem

(c) Momentum Conservation Theorem

(d) Maxwell Theorem

The question was posed to me in class test.

Query is from Mass Energy Relation topic in division Ultrasonics & Relativity of Engineering Physics I

Answer 1

Right option is (b) Work-Energy Theorem

For explanation: To derive Einstein’s mass-energy relation, the basic principle used is Work-Energy Theorem. It states that the kinetic energy of a moving body is equal to the work done by the external force on the body from rest.