Mensurationhard · Past Paper
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. Find the rise in water level.
A2.25 cm
B1.125 cm
C4.5 cm
D3 cm
✓ Correct Answer: A — 2.25 cm
Vol_displaced = Vol_sphere = 4/3 π 3³ = 36π. π (4²) h = 36π => 16h = 36 => h = 2.25 cm.
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