In a screw gauge, 5 complete rotations of the screw cause it to move a linear…
PHYSICS · Single correct · CBSE · Physics · Units and Measurements · Units and Measurements
Problem
In a screw gauge, 5 complete rotations of the screw cause it to move a linear distance of 0.25 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 zero error, the thickness of the wire is:
(1) 0.0430 cm
(2) 0.3150 cm
(3) 0.4300 cm
(4) 0.2150 cm