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Explain the Following : a Coin Placed at the Bottom of a Vessel Appears to Be Raised When Water is Poured in the Vessel. - Physics

Question

Explain the following : 
A coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.

Solution

The coin at a appears to be at B i. e. depth of coin observed is less than the actual depth at A.
The ray of light starting from A (denser) medium bends away from the normal. Due to the Refraction of light, the coin appears at B at a lower depth. Hence, in the same way, the depth of water appears to be less deep.

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APPEARS IN

 Selina Solution for Concise Physics - Middle School for Class 8 ICSE (2020 (Latest))
Chapter 5: Light Energy
Short/long Answer Question | Q: 15.1 | Page no. 100
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Explain the Following : a Coin Placed at the Bottom of a Vessel Appears to Be Raised When Water is Poured in the Vessel. Concept: Terms Related to Curved Mirrors:Focus, Principal Axis, Centre of Curvature, Radius of Curvature.
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