Question

A coin is placed at the bottom of a clear glass vessel. An observer move herself to a position where the coin goes just out of sight of her eyes. Keeping her eyes in that position, she asks her friend to pour some water, gradually
into the glass vessel.
(a) What would she observe?
(b) Name the phenomenon involved in this observation.
(c) Draw a neat labelled diagram to justify your answer.​

Answer 1

Answer:

answer of (c) is in pic

Explanation:

a) He/she observe that coin appear above to the bottom due to refraction of light

b) Refraction

Answer 2

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