Why does a coin placed in a water tank appears raised?
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coin placed in a water tank appears raised due to the phenomenon of refraction....
Refraction is the change in the speed of light when the ray of light travels from one medium to second medium...
In case of a coin placed in a water tank,the ray of light travels from rarer medium i.e.air to denser medium i.e.water, therefore it appears to be raised
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why does a coin placed in a water tank appears raised ?
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