Cylindrical box of radius 5 cm contain 10 solid spherical balls each of radius 5 If topmost ball touches the upper cover of box then volume of empty space in box is?
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length of cylinderical box=10 x diameter of solid spherical ball
length=100cm
volume of cylindrical box =pi.r^2.h
=22/7 x 5 x 5 x 100
=7850cm^3
volume of 10 solid spherical balls =10 x 4/3 x 22/7 x (5)^3=5238 cm^3
empty space =volume of cylindrical box-volume of solid spherical balls
=7850-5238=2612cm^3
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