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A cylindrical vessel of diameter 24 cm contains some water. If two spheres of radii 6 cm each are lowered into the water until they are completely immersed, then the water level (in cm) in the vessel will rise by
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- 12
- 6
- 4
- 9
- 12
Correct Option: C
Volume of the two spheres of radius 6 cm. each
| = 2 × | πr³ | |
| 3 |
| = 2 × | π(6)³ | |
| 3 |
= 576 p cu. cm.
According to the question, π × 12 × 12 × h = 576π
| ⇒ h = | = 4 cm. | |
| 12 × 12 |
