Physics
Which of the following measures a small length to a high accuracy — metre rule, vernier callipers, screw gauge?
Related Questions
State the difference between positive and negative zero error of a screw gauge.
Name the instrument which can measure accurately the following —
- the diameter of a needle,
- the thickness of a paper,
- the internal diameter of the neck of a water bottle,
- the diameter of a pencil.
Name the instrument which has the least count —
- 0.1 mm
- 1 mm
- 0.01 mm
Explain the meaning of the term ‘least count of an instrument’ by taking a suitable example.