An image is seen on the screen when the speed of rotation 900 rev/sec of 16 sided mirror. The speed of rotation is gradually increased until at 1200 rev/sec , the image is again seen , if c = 300000000 m/s then find the distance between two mirrors and the lowest speed of rotation for which an image will be seen on the screen ?
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light from a rotating mirror to a fixed mirror and back creating ... measure the speed of light, c, in a vacuum by using the Foucault method for measuring the speed of light.
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