How are you able to see the coin when water pure in the row as shown i

1.	How are you able to see the coin when water pure in the row as shown in figure c
Answer» TER is poured, light TRAVELS in a straight line until it reaches the surface of water, then it bends. When produced backwards this ray APPEARS to COME from the position C '. Since the point C' is at a HIGHER level than C, the coin appears raised and becomes visible.

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How are you able to see the coin when water pure in the row as shown in figure c​

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How are you able to see the coin when water pure in the row as shown in figure c