Lakhmir Singh & Manjit Kaur - Physics

Book: Lakhmir Singh & Manjit Kaur - Physics

Chapter: 3. Sources of Energy

Subject: Physics - Class 10th

Q. No. 17 of Short Answer Type Questions-Pg-157

Listen NCERT Audio Books - Kitabein Ab Bolengi


Write Einstein's mass-energy equation. Give the meaning of each symbol which occurs in it.

Einstein's mass-energy equation is, E=mc2,

The equation is derived directly from Einstein’s Special Theory of Relativity

Each of the letters of E = mc2 stands for a particular physical quantity. Writing them out in full we get:

E = energy (measured in joules, J)

m = mass (measured in kilograms, kg)

c = the speed of light (measured in meter per second, ms-1)

Chapter Exercises

More Exercise Questions