Least Count Of The Micrometer Screw Gauge

 Least Count Of The Micrometer Screw Gauge:

The smallest distance that can be measured with the micrometer screw gauge is called the least count of the Micrometer Screw Gauge.

Formula Of Least Count Of Micrometer Screw Gauge

Least Count  =        Pitch of the Screw                 

                           No.of Divisions On Circular Scale

Least Count =   1   mm

                         100 

                      = 0.01 mm = 0.001 cm