The pitch of screw gauge is 1 mm and its circular scale is

Last updated: 6/12/2023

The pitch of screw gauge is 1 mm and its circular scale is divided into 100 divisions When nothing is put between the students the zero of main scale is not seen but when circular scale is rotated by 450 the zero of main scale is just visible and the zero of main scale coincide with the zero of circular scale When a glass plate is placed between the studs The circular scale li s between 18th division of main scale and circular scale reads 34 divisions Then