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A student is carrying out an experiment similar to Fizeau's experiment to measure the speed of light. He sets up a mirror on one headland and a laser and photosensor on another, 3.20 km away, positioned behind a toothed wheel, as shown. The laser light reflects off the mirror, passes between the teeth of the wheel and reaches the photosensor. The gaps between the teeth on the wheel are 6.00 mm wide. Laser and photosensor toothed wheel 6.00 mm gaps 200 ms¹ mirror 3.20 km During the night, the angular velocity of the toothed wheel is gradually increased from zero until the photosensor records no light. The student measures the speed of the teeth on the wheel to be 200 ms¹ at this point. Using this information, what should the student calculate the velocity of light to be?

A student is carrying out an experiment similar to Fizeau's experiment to measure the speed of light. He sets up a mirror on one headland and a laser and photosensor on another, 3.20 km away, positioned behind a toothed wheel, as shown. The laser light reflects off the mirror, passes between the teeth of the wheel and reaches the photosensor. The gaps between the teeth on the wheel are 6.00 mm wide. Laser and photosensor toothed wheel 6.00 mm gaps 200 ms¹ mirror 3.20 km During the night, the angular velocity of the toothed wheel is gradually increased from zero until the photosensor records no light. The student measures the speed of the teeth on the wheel to be 200 ms¹ at this point. Using this information, what should the student calculate the velocity of light to be?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A student is carrying out an experiment similar to Fizeau's experiment to measure the speed of light. He sets up a mirror on one headland and a laser and photosensor on another, 3.20 km away, positioned behind a toothed wheel, as shown. The laser light reflects off the mirror, passes between the teeth of the wheel and reaches the photosensor. The gaps between the teeth on the wheel are 6.00 mm wide. Laser and photosensor toothed wheel 6.00 mm gaps 200 ms¹ mirror 3.20 km During the night, the angular velocity of the toothed wheel is gradually increased from zero until the photosensor records no light. The student measures the speed of the teeth on the wheel to be 200 ms¹ at this point. Using this information, what should the student calculate the velocity of light to be?
Transcribed Image Text:A student is carrying out an experiment similar to Fizeau's experiment to measure the speed of light. He sets up a mirror on one headland and a laser and photosensor on another, 3.20 km away, positioned behind a toothed wheel, as shown. The laser light reflects off the mirror, passes between the teeth of the wheel and reaches the photosensor. The gaps between the teeth on the wheel are 6.00 mm wide. Laser and photosensor toothed wheel 6.00 mm gaps 200 ms¹ mirror 3.20 km During the night, the angular velocity of the toothed wheel is gradually increased from zero until the photosensor records no light. The student measures the speed of the teeth on the wheel to be 200 ms¹ at this point. Using this information, what should the student calculate the velocity of light to be?
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