Two full turns of the circular scale of a screw gauge cover a distance of `1mm` on its main
Channel: Doubtnut
Date: 05/07/2020

Two full turns of the circular scale of a screw gauge cover a distance of `1mm` on its main scale. The total number of divisions on the circular scale is `50`. Further, it is found that the  screw gauge has a zero error of `- 0.03mm`. While main scale reading of `3mm` and the number of circular scale divisions in line with the main scale as `35`. the dimeter of the wire is