जॉइन Examsbookउत्तर : 2. "84 mts"
88 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be ?5
प्र: 88 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be ?
- 1112 mtsfalse
- 284 mtstrue
- 396 mtsfalse
- 4108 mtsfalse
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उत्तर : 2. "84 mts"
व्याख्या :
Answer: B) 84 mts Explanation: Vol of silver = πR2h = 66 C.C Given D= 1mm => R = D/2 = 1/20 cm => 227×1202×h = 66 = 66 x 400 x (7/22) = 8400 cm = 84 mtrs.