Special theory of relativity.

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Answer:-
The two basic postulates of special theory of relativity are,
★The laws of physics all take the same identical form for all frames of reference in uniform relative motion, I.e for all the inertial frames of reference.
★The velocity of light in free space is the same relative to any inertial frame of reference,I.e, it is invariant to transformation from one inertial frame to another and has thus the same value (C=3×10⁸m/sec) for all observers irrespective of their state of motion.

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