Question

Least count of screw gauge is defined as.

Answer 1

Answer:

A screw gauge of 100 divisions will move the cap scale along the main scale by 1/100 of mm-0.01 mm. This is the minimum value up to which a screw gauge can measure and is known as its least count. Or it is defined as the ratio between the pitch of the screw and the number of divisions on the circular scale.

Answer 2

Least count of screw is the minimum value upto a screw gauge can be measured .

Explanation:

• A screw gauge has a hundred divisions in a cap scale .this is the minimum value up to a screw gauge can measure and known as its least count .
• It can be defined as a ratio between the pitch of the screw and the number of divisions on the circular scale.
• if the pitch of the screw gauge is twice the least count of the vernier cappiler ,then the least count of screw gauge is 0.005mm.if the LC is twice the LC of the vernier cappilers then the LC of the screw gauge is 0.01 mmD.