Question

what is theory of relativity ​

Answer 1

The theory of relativity usually encompasses two interrelative theories by Albert Einstein : special relativity and general relativity applies to all physical phenomena in the absence or gravity.

Answer 2

Answer:

The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity. Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravitation and its relation to other forces of nature.