Question:A cylindrical vessel of radius `8` cm contains water. A solid sphere of radius `6` cm is lowered into the water until it is completely immersed. The water level in the vessel will rise by : 

A `3.5 cm` 
B `4.5 cm` 
C `4 cm` 
D `7 cm` 

+ Answer
B 

+ Explanation
`π xx (8)^2 xx h`

`= 4/3 π xx (6)^3 or h`

`= (4 xx 72)/64`

`= 4.5 cm.`

+ Report

Irin Moni

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