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Physics 8 Online
OpenStudy (anonymous):

How did Michelson measure the speed of light? A. by watching for eclipses B. by using rotating mirrors to measure the time of round trip travel of light to a distant mountain C. by observing how light was refracted in passing from air to water D. by measuring the wavelength of light

OpenStudy (michele_laino):

using his famous apparatus composed by two rotating mirrors. That experiment was performed a first time in Belino (Germany) and a second time in Cleveland (United States)

OpenStudy (anonymous):

ohh okay! so choice B? :O

OpenStudy (michele_laino):

yes!

OpenStudy (anonymous):

yay! thank you!!

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