If the mirror in Michelson’s apparatus had had six sides instead of eight, would it have had to spin faster or more slowly to measure the
Whether the mirror in the Michelson’s apparatus with six sides instead of eight would have had to spin faster or slowly in order to measure the speed of light.
Answer to Problem 34A
Faster
Explanation of Solution
Introduction:
The speed of light will remain constant, so on decreasing the mirror sides, the spin speed should increase.
If the mirror has eight sides, then of a rotation is required to measure the speed of light whereas the mirror has six sides, then the of a rotation is required to measure the speed of light.
The distance traveled in rotation will be more than the distance traveled in so to measure the same speed of light, the spin of rotation should be more.
Conclusion:
Thus, the rotation speed will increase as the number of sides of the mirror is decreased from eight to six.
Chapter 27 Solutions
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