Exam-style question
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How did the Michelson-Morley experiment contribute to the rejection of the ether model?.
- A.By measuring light speed in a vacuum
- B.By showing that light speed is constant
- C.By demonstrating time dilation effects
- D.By providing evidence of length contraction
Model answer
What a good answer should say
- By showing that light speed is constant
Explanation
Why this works
The experiment's failure to detect any difference in light speed in different directions suggested that the ether model was unnecessary, leading to its rejection and the acceptance of the idea that the speed of light is constant in all inertial frames.
Common mistake
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