Step-by-step explanation:
The two postulates of Einstein’s special theory of relativity are as follows :
1. The first postulate states that the laws of physics are the same in all uniformly moving reference frames.
2. The second postulate states that the speed of light in a vacuum has the same value for all observers, regardless of the state of motion the observer or the source of light.
These are two postulates of Einstein’s special theory of relativity.