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प्रश्न
What do you understand by the following term as applied to micrometre screw gauge?
Thimble scale
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उत्तर
It is also known as a circular scale. A scale marked on the tapered end of a hollow cylinder, which can move over the sleeve cylinder, is known as a thimble scale.
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संबंधित प्रश्न
Define the term 'Vernier constant'.
What is meant by zero error of vernier callipers ? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
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
The main scale of vernier callipers has 10 divisions in a centimetre and 10 vernier scale divisions coincide with 9 main scale divisions. Calculate
- pitch
- L.C. of vernier callipers.
In figure for vernier callipers, calculate the length recorded.
When does a vernier callipers has the negative error?
In the following figure, the pitch of the screw is 1 mm. Calculate:
(i) the least count of screw gauge and
(ii) the reading represented in the figure.
Define the least count of an instrument.
Thickness of a cricket ball is measured by ______.
