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प्रश्न
State one use of a screw gauge.
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उत्तर
A screw gauge is used for measuring diameter of circular objects mostly wires with an accuracy of 0.001 cm.
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संबंधित प्रश्न
Name the part of the vernier callipers which is used to measure the following
External diameter of a tube
Name the part of the vernier callipers which is used to measure the following
Thickness of a pencil.
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
Up to how many decimal places can a common vernier callipers measure the length in cm?
When does a vernier callipers has the negative error?
Consider the following case where the zero of vernier scale and the zero of the main scale are clearly seen. If L.C. of the vernier calipers is 0.01 cm, write the zero error and zero correction of the following.

On a vernier calliper, 25 vernier scale divisions are equal in length to 24 main scale divisions. One main scale division is 1 mm. Find the least count of the instrument.
In a vernier calipers, (N + 1) divisions of vernier scale coincide with N divisions of main scale. If 1 MSD represents 0.1 mm, the vernier constant (in cm) is ______.
