Define the least count of screw gauge.

Solution

Least count of screw gauge is the distance by which the screw advances when it is rotated by one division on the circular scale.
Mathematically, it is given by
Least count =

fraction numerator Pitch over denominator No. space of space div. space on space circular space scale end fraction

Some More Questions From Units and Measurement Chapter

What are the two main required characteristics of a unit?

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Units And Measurement

Define the least count of screw gauge.

Some More Questions From Units and Measurement Chapter

What are the two main required characteristics of a unit?

Can we use same units for different physical quantities?

Can we use different units to measure same physical quantity?

To measure a physical quantity X, the unit U is repeatedly used for n times. What is the magnitude of physical quantity?

Does the numerical factor in the quantitative measurement depend on the system of unit used?

Is one unit sufficient to measure a physical quantity?

Can a physical quantity have two or more units? Give example.

What are fundamental quantities?

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