Question

Einstein's Second Postulate of Special Relativity states that the speed of light ______________________.

• A. can increase if the speed of the light source increases.
• B. is constant regardless of the speed of the observer or the light source.
• C. can decrease if the speed of the observer decreases.
• D. randomly changes depending upon its original light source.

Answer 1

The correct option is B is constant regardless of the speed of the observer or the light source.

The second postulate of special relativity is the idea that the speed of light c is a constant, independent of the relative motion of the source and the observer.