A cylindrical vessel, whose diameter and height both are equal to 30 cm, is placed on a
Channel: Doubtnut
Date: 2020-07-26

A cylindrical vessel, whose diameter and height both are equal to 30 cm, is placed on a horizontal surface and a small particla P is placed in it at a distance of 5.0 cm from the center. An eye is placed at a position such that the edge of the bottom is just visible. The particl P is in the plane of drawing. Up to what minimum height should water be poured in the vessel to make the particle P visible?  img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/BMS_V04_C01_S01_032_Q01.png" width="80%"