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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. The water level in the vessel will rise by?

4.5 cm
2.25 cm
4/9 cm
2/9 cm

Correct Answer: 2.25 cm

Explanation:

∵ π x (4)² x h = 4/3 π x (3)³
∴ h = 9/4 cm
= 2.25 cm

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