Question

why is light constant for two inertial frame in special theory of relativity?​

Answer 1

Explanation:

In physics, special relativity (also known as the special theory of relativity) is the generally accepted[1] and experimentally confirmed physical theory regarding the relationship between space and time. In Albert Einstein's original treatment, it is based on two postulates:

the laws of physics are invariant (i.e., identical) in all inertial frames of reference (i.e., non-accelerating frames of reference); and

the speed of light in a vacuum is the same for all observers, regardless of the motion of the light source or observer.

Answer 2

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The special theory of relativity

• postulates the invariance of speed of light in inertial frames, that is, frames which are not accelerating with respect to each other.

• According to this, the speed of light as observed by two observers moving with constant velocity with respect to each other, is equal to c for both.