A small coin is resting on the bottom of a beaker filled with liquid A Ray of light from the coin travels up to the surface of the liquid and most along its surface how fast is that light travelling in the liquid
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A small coin is resting on the bottom of a beaker filled with a liquid. A ray of light from the coin travels up to the surface of the liquid and moves along its surface. So the speed of the light will be 1.8 x 10^8 m/s.
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