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प्रश्न
What do you understand by the term zero error?
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उत्तर
A vernier callipers is said to have a zero error when zero of the main scale does not coincide with zero of the vernier scale.
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संबंधित प्रश्न
A screw gauge has a least count 0.001 cm and zero error +0.007 cm. Draw a neat diagram to represent it.
Which of the following measures a small length to high accuracy : metre rule , vernier callipers or screw gauge?
A screw gauge has 50 divisions on its circular scale and its screw moves by 1 mm on turning it by two revolutions. When the flat end of the screw is in contact with the stud, the zero of the circular scale lies below the base line and 4th division of the circular scale is in line with the base line. Find
(i) The pitch,
(ii) The least count and
(iii) The zero error of the screw gauge
Who invented vernier callipers?
Figure shows a screw gauge in which circular scale has 100 divisions. Calculate the least count and the diameter of a wire.
A micrometre screw gauge having a positive zero error of 5 divisions is used to measure diameter of a wire, when reading on the main scale is 3rd division and the 48th circular scale division coincides with baseline. If the micrometer has 10 divisions to a centimetre on the main scale and 100 divisions on a circular scale, calculate
- Pitch of screw
- Least count of screw
- Observed diameter
- Corrected diameter.
What do you understand by the following term as applied to micrometre screw gauge?
Thimble
