Why coin under glass vessel looks on surface of water?
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it is due to refraction
when the light rays reflected from the coin in the water travel to our eyes due to change of medium from liquid to gas (denser-rarer) the refracted rays bend away from normal thus decreasing the apparent depth
when the light rays reflected from the coin in the water travel to our eyes due to change of medium from liquid to gas (denser-rarer) the refracted rays bend away from normal thus decreasing the apparent depth
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