Question
A cube of side 14 cm is immersed completely in a
cylindrical vessel of radius 10 cm. What will be the rise in the water level in the vessel due to the immersion of the cube?( Ο = 3.14)Solution
Volume of the cube = 14^3 = 2744 cubic cm. Let the rise in water level be h cm. Volume of water displaced = volume of the cube. Volume of water displaced = Ο * rΒ² * h, where r = 10 cm. Ο * (10)^2 * h = 2744. 100Ο * h = 2744. h = 2744 / (100Ο) = 2744 / 314 β 8.74 cm.
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