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प्रश्न
Define the term 'Vernier constant'.
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उत्तर
Vernier constant is equal to the difference between the values of one main scale division and one vernier scale division. It is the least count of vernier callipers.
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संबंधित प्रश्न
The wavelength of light of a particular colour is 5800 Å.
Express it in nanometre.
Name the instrument which has the least count
0.1 mm
The pitch of a screw gauge is 1 mm and the circular scale has 100 divisions. In measurement of the diameter of a wire, the main scale reads 2 mm and 45th mark on the circular scale coincides with the base line. Find
(i) The least count and
(ii) The diameter of the wire.
(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.
The thimble of a screw gauge has 50 divisions for one rotation. The spindle advances 1 mm when the screw is turned through two rotations.
- What is the pitch of the screw?
- What is the least count of screw gauge?
- When the screw gauge is used to measure the diameter of wire the reading on the sleeve is found to be 0.5 mm and reading on thimble is found, 27 divisions. What is the diameter of the wire in centimetres?
The Wavelength of a particular colour is 5400Å. Express it in nanometer and metre.
How will you measure the least count of vernier caliper?
Least count of a vernier caliper is ______ cm.
