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Question

A conical vessel whose internal radius is 5 cm and height 24 cm is full of water. The water is emptied into a cylindrical vessel with internal radius 10 cm. Find the height to which the water rises.

A
2 cm
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B
4 cm
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C
6 cm
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D
8 cm
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Solution

The correct option is A 2 cm
Volume of water in the conical vessel will be equal to the volume of water in the cylindrical vessel.

Volume of a Cylinder of Radius "R" and height "h" =πR2h

Volume of a cone =13πr2h, where r is the radius of the base of the cone and h is the height.

Hence, 227×10×10×h=13×227×52×24

h=2 cm

Hence, height of water in the cylindrical vessel is 2 cm.

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