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प्रश्न
How can the least count of a screw gauge be decreased?
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उत्तर
The least count of a screw gauge can be decreased by
- Decreasing the pitch and
- Increasing the total number of divisions on the circular scale.
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संबंधित प्रश्न
What do you mean by zero error of a screw gauge? How is it accounted for?
A screw gauge has a least count 0.001 cm and zero error +0.007 cm. Draw a neat diagram to represent it.
Define metre according to the old definition.
(a) A vernier scale has 10 divisions. It slides over the main scale, whose pitch is 1.0 mm. If the number of divisions on the left hand of zero of the vernier scale on the main scale is 56 and the 8th vernier scale division coincides with the main scale, calculate the length in centimetres.
(b) If the above instrument has a negative error of 0.07 cm, calculate the corrected length.
For what range of measurement is micrometre screw gauge used?
What do you understand by the following term as applied to micrometre screw gauge?
Sleeve scale
What is the least count in the case of the following instrument?
Thermometer
