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| 1. |
A cylindrical vessel, whose diameter and height both are equal to 30 cm, is placedon a horizontal surface and a small particle P is placed in it at a distance of 5.0 cmfrom the centre. An eye is placed at a position such that the edge of the bottom isjust visible. The particle P is in the plane of drawing. Up to what minimum heightshould water be poured in the vessel to make the particle P visible? |
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