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| Q.19 | The radius of a solid metallic sphere is equal to 15 cm. It is melted and drawn into a long wire of radius 15 mm having uniform cross-section. Find the length of the wire. | |
| Ans | 1. 1800 cm | |
| 2. 2100 cm | ||
| 3. 2000 cm | ||
| 4. 1900 cm |
Correct Ans Provided: 3
