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Grade 12th PassGeneral Physics

what is meant by the term least count while measuring by a screw gauge?

Profile image of ANIMESH BHAR
8 Years agoGrade 12th Pass
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1 Answer

Profile image of Arun
8 Years ago
Dear student
 

The least count is the smallest unit of measurement which an instrument can take accurately.

The least count of screw guage can be determined by the following way.

Pitch /total no of divisions on circular scale

Therefore 1/100

0.01mm

We can convert it into cm as,

0.001cm


Regards

Arun (askIITians forum expert)