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The surface areas of two spheres are in the ratio 4 : 9. Their volumes will be in the ratio
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- 2 : 3
- 4 :9
- 8 : 27
- 64 : 729
- 2 : 3
Correct Option: C
Let the radii of the first and second sphere be r1 and r2 units respectively.
According to the question,
| = | ||||
| 4πr2² | 9 |
| ∴ | = | πr1³ | ||||||||||||
| = |  |  | ³ | = | | | ³ | × | or 8 : 27 | |||||
| V2 | πr2³ | r2 | 3 | 27 | ||||||||||
| 3 | ||||||||||||||
