when spherical balls of lead having radius 0.5 cm are dropped into a cone of radius5cm,and height 8cm full of water,then one fourth of the water flows out.find the number of leads balls dropped?
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1/4volume of cone =N. volume of spherical ball
where N is no of ball
1/4{pi.(5cm)^2.8cm}/3=4/3pi. (0.5cm)^3N
N=100
where N is no of ball
1/4{pi.(5cm)^2.8cm}/3=4/3pi. (0.5cm)^3N
N=100
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