Chapter 15, Problem 6A

To determine

To Explain: The second postulates of the special relativity.

Explanation of Solution

Introduction:

The speed of the light c in vacuum is the same in all inertial reference frames irrespective of the motion of the observer.

Special theory of relativity gives two postulates. According to the first postulate, the laws of the physics do not vary with the change in the inertial frames of reference.

Second postulate states that the light has fixed speed irrespective of space and inertial frame of reference. These postulates were formulated by Einstein.

Conclusion:

Thus, the speed of the light is constant or same in all inertial frame of reference.