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प्रश्न
Define the term least count as applied to a vernier callipers.
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उत्तर
Least count of a vernier callipers is the difference between one main scale division (M.S.D.) and one vernier scale division (V.S.D.)
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संबंधित प्रश्न
Name the instrument which can accurately measure the following
The internal diameter of the neck of a water bottle
(a) A vernier scale has 20 divisions. It slides over the main scale, whose pitch is 0.5 mm. If the number of divisions on the left hand of the zero of vernier on the main scale is 38 and the 18th vernier scale division coincides with the main scale, calculate the diameter of the sphere, held in the jaws of vernier callipers.
(b) If the vernier has a negative error of 0.04 cm, calculate the corrected radius of the sphere.
Which part of vernier callipers is used to measure the internal length of a hollow cylinder?
A micrometre screw gauge has a negative zero error of 7 divisions. While measuring the diameter of a wire the reading on the main scale is 2 divisions and 79th circular scale division coincides with baseline.
If the number of divisions on the main scale is 10 to a centimetre and circular scale has 100 divisions, calculate
- pitch
- observed diameter
- least count
- corrected diameter.
What do you understand by the following term as applied to micrometre screw gauge?
Thimble scale
What do you understand by the following term as applied to screw gauge?
Negative zero error
How do you account for positive zero error for calculating the correct diameter of wires?
What is the backlash error?
