Question

explain the meaning of the term 'least count of an instrument' by taking a suitable example?

Answer 1

The least count of an instrument is the smallest measurement that can be taken with that instrument.

For ex :-  A simple scale of 15cm can measure an object upto an accuracy                   of 1mm.  So the least count of the scale is 1mm.

Answer 2

Answer:

Tje least count of an instrument is the smallest measurement that can be taken with that instrument.

For example.A sundial can have a least count of 1 hour and a vernier calliper can have a least count of 0.01 CM.