Which option best describes the speed of light?(1 point)

Responses

The speed of light is a relative quantity. It varies based on an observer’s relative motion or the motion of the light source.
The speed of light is a relative quantity. It varies based on an observer’s relative motion or the motion of the light source.

The speed of light is a relative quantity. It is constant regardless of an observer’s relative motion or the motion of the light source.
The speed of light is a relative quantity. It is constant regardless of an observer’s relative motion or the motion of the light source.

The speed of light is an absolute quantity. It is constant regardless of an observer’s relative motion or the motion of the light source.
The speed of light is an absolute quantity. It is constant regardless of an observer’s relative motion or the motion of the light source.

The speed of light is an absolute quantity. It varies based on an observer’s relative motion or the motion of the light source.

1 answer

The option that best describes the speed of light is:

The speed of light is an absolute quantity. It is constant regardless of an observer’s relative motion or the motion of the light source.

This statement aligns with the principles of Einstein's theory of relativity, which asserts that the speed of light in a vacuum is always constant (approximately 299,792 kilometers per second) for all observers, regardless of their motion.