Question

what are laws of relativity​

Answer 1

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.

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Answer 2

Answer:

The laws of physics are the same for all observers in any inertial frame of reference relative to one another ( principal of relativity ).The speed of light in a vacuum is the same for all observers,regardless of their relative motion or of the motion of the light source.