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The pitch of a screw gauge is 1 mm and t...

The pitch of a screw gauge is 1 mm and there are 100 divisions on the circular scale. While measuring the diameter of a wire, the linear scale reads 1 mm and `4^(th)` division on the circular scale coincides with the reference line. The length of the wire is 5.6 cm. Find the curved surface area `("in cm"^(2))` of the wire in approprite number of significant figures.

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The correct Answer is:
`2.6 cm^(2)`
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