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प्रश्न
When is a vernier Callipers said to be free from zero error?
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उत्तर
A vernier Callipers are said to be free from zero error if the zero marks of the vernier scale coincides with the zero marks of the main scale.
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संबंधित प्रश्न
Which of the following measures a small length to high accuracy : metre rule , vernier callipers or screw gauge?
A boy uses a vernier callipers to measure the thickness of his pencil. He measures it to be 1.4 mm. If the zero error of vernier callipers is +0.02 cm, what is the correct thickness of the pencil?
What is the need for measuring length with vernier callipers?
A micrometre screw gauge has a negative zero error of 8 divisions. While measuring the diameter of a wire the reading on the main scale is 3 divisions and the 24th circular scale division coincides with baseline.
If the number of divisions on the main scale are 20 to a centimetre and circular scale has 50 divisions, calculate
- pitch
- observed diameter.
- least count
- corrected diameter.
For what range of measurement is micrometre screw gauge used?
State the formula for calculating the least count of screw.
What do you understand by the following term as applied to screw gauge?
Positive zero error
Name the measuring employed to measure the diameter of a pencil.
What is the least count in the case of the following instrument?
Stopwatch
