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Q.
88 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be ?
A.
112 mts
B.
84 mts
C.
96 mts
D.
108 mts
View Answer
Correct choice: B
Explanation:
Vol of silver = πR2h = 66 C.C Given D= 1mm => R = D/2 = 1/20 cm => 227×(1/20)2×h = 66 = 66 x 400 x (7/22) = 8400 cm = 84 mtrs.
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