Which of the following is a postulate of special relativity?
A. The laws of physics are the same for all observers in uniformly moving frames of reference
B. The relative speed of two objects is the same for all observers
C. Physicists can make no measurements in a moving reference frame
D. The color of light is the same for all observers
Answer: A
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A beam of light of wavelength 630 nm is incident on a slit that is 0.400 mm wide. If the distance between the slit and the screen is 1.80 m, what is the width on the screen of the central bright fringe?
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The maximum displacement of points on a wave from the equilibrium position is the wave's __________
Fill in the blank(s) with correct word