352 cubic centimeters of silver is drawn into a wire 2 mm in diameter. The length of the wire will b

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08 Mar 2018 Length of Wire

352 cubic centimeters of silver is drawn into a wire 2 mm in diameter. The length of the wire will be:

OPtion

1) 11200 mm
2) 5600 cm
3) 224000 cm
4) 24000 mm
5) 28 m
6) 280 cm
7) 2800 mm
8) 1120 cm
9) 112 m
10) None of these

Solution

Radius in cm = (1/2)*(2/10) = 0.1 cm

Volume of Cylinder = Pi*r^2*l

So, Length l = 352/(Pi*r^2)
=> 352/(22/7 * 0.1 * 0.1)
=> 11200 cm = 112 m

Correct Option: 9 Best Solution (0)