why do a coin placed under water feel to be higher position than actual position ? name the process behind this concept . also try to explain by drawing diagram
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because of refraction of light
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When a coin is placed under water, it appears to be slightly elevated from its actual position.
This phenomenon is known as the refraction of light.
The point from the where the rays of light refract offers the illusion of a raised position of the coin.
Since the point from where the rays apparently emanate is above the coin, it seems to have shifted up to an extent.
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