Question
A cylindrical vessel of radius 4 cm contains water . A solid sphere of radius 3 cm is lowered into the water until it is completely immersed . he water level in the vessel will rise by :
Answer: Option C
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Let the rise in the water level be h cm.
Then , `pi xx 4 xx 4 xx h = 4/3 pi xx 3 xx 3 xx 3`
`rArr 4xx h = 3 xx 3`
`rArr h = ((3 xx 3)/(4)) = 9/4 cm`
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