Question

A vessel of depth 40 cm is half filled with a liquid of refractive index . The apparent depth of vessel seen perpendicularly is

Answer 1

Apparent depth of vessel when seen perpendicularly.

1) The vessel is half filled with the liquid till 20 cm which must have some refractive index which is not mentioned in the question.

2) If a vessel is filled with any liquid by the process of the refraction the bottom of the any vessel always visible raised from its actual position.

3) So the depth of the is slightly less than the actual one when seen perpendicularly from above of the vessel.