4. According to the Michelson and Morley experiments, which of the following is NOT true? The speed of light is constant and is independent of the motion of the source or the observer. A beam of light that travels parallel to the aether would take longer than the beam that travels perpendicularly to the aether. O Waves had to have some medium to travel through. The laws of physics are the same in all frames of reference that are moving uniformly