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संबंधित प्रश्न
Explain the terms : Least count of a screw gauge.
How are they determined?
State the purpose of ratchet in a screw gauge.
A screw gauge has a least count 0.001 cm and zero error +0.007 cm. Draw a neat diagram to represent it.
Name the instrument which can accurately measure the following
The internal diameter of the neck of a water bottle
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.
Is it possible to increase the degree of accuracy by mathematical manipulations? Support your answer by an example.
A micrometre screw gauge has a negative zero error of 8 divisions. While measuring the diameter of a wire the reading on the main scale is 3 divisions and the 24th circular scale division coincides with baseline.
If the number of divisions on the main scale are 20 to a centimetre and circular scale has 50 divisions, calculate
- pitch
- observed diameter.
- least count
- corrected diameter.
What do you understand by the following term as applied to micrometre screw gauge?
Sleeve scale
How do you account for positive zero error for calculating the correct diameter of wires?
