Physics - Practical physics Question with Solution | TestHub

In a screw gauge,$5$complete rotations of the screw cause it to move a linear distance of$0.25 \mathrm{cm}$. There are$100$circular scale divisions. The thickness of a wire measured by this screw gauge gives a reading of$4$main scale divisions and$30$circular scale divisions. Assuming negligible error, the thickness of the wire is