What is the reading of micrometer screw gauge shown in figure

What is the least count of a standard screw gauge

Diagrams show readings of a screw gauge. Figure (i) shows the zero error reading when the screw gauge is closed, figure (ii) the reading when the screw gauge is being used to measure the diameter of a ball-bearing. What is the diameter of the ball-earing ? There are 50 divisions on circular scale.

Thickness of the paper mesaured by micrometer screw gauge of least count 0.01 mm is 1.03 mm, the percentage error in the measurement of thickness of paper is

Thickness of the paper mesaured by micrometer screw gauge of least count 0.01 mm is 1.03 mm, the percentage error in the measurement of thickness of paper is

A student measured the diameter of a wire using a micrometer screw gauge of least count 0.001 cm. He recorded the following measurements. The correct measurement is

State the purpose of ratchet in a screw gauge.

Name the principle on which screw gauge works.

A student measured the diameter of a solid cylinder using a micrometer screw gauge of least count 0.001 cm and took the following readings. Which is the correct measurement?

Define least count of a screw gauge.