Physics
Which of the following measures a small length to a high accuracy — metre rule, vernier callipers, screw gauge?
Measurements
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Answer
A screw gauge measures a small length to a high accuracy.
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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 —
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- 1 mm
- 0.01 mm
Explain the meaning of the term ‘least count of an instrument’ by taking a suitable example.