Question

Why does a coin seems raised at the bottom of the glass and when water is poured in it

Answer 1

Answer: A coin placed at the bottom of a tank appears to be raised when water is poured into it because when the rays of light from the coin, in the denser medium, fall on the interface separating the two media, the rays of light move away from the normal after refraction.

Explanation:

Answer 2

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1. When the bowl is empty, the rays of light coming from the coin are obstructed by the side of the bowl.

2. Hence, the coin is not visible when seen from one side of the bowl.

3. When water is poured in the bowl, the rays of light coming from the coin trave from water (denser medium) to air (rarer medium).

4. Hence, they bend away from the normal on refraction.

Therefore, the coin appears to be raised and becomes visible when observed from one side of the bowl.

Hope it helps!

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