1. Consider the interferometer experiment from lecture (assume the same setup as used in lecture). \"70 found that in the inertial frame of the ether the phase difference between the two beams is 27 277 2L 2L Ag) * 1 d : /\\ ((H i) A (1714'2/62 '171'2/(32) where dll is the distance traveled by the beam that moves parallel to the interferometers velocity and (IL is the distance traveled by the beam that moves perpendicular to the interferometei's velocity. When this experiment is actually done there is no phase difference (no interference) detected. So. let's forget about the ether entirely and apply special relativity. We'll just say the interferometer travels to the right relative to an arbitrary observer. Use length contraction to show there is no path difference for the two beams