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प्रश्न
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उत्तर
Two scales in a screw gauge are
(a). A linear scale called the main scale graduated in half millimeters
(b). A circular scale divided into 50 or 100 equal parts.
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संबंधित प्रश्न
Draw a neat and labelled diagram of a vernier callipers. Name its main parts and state their functions.
Name the two scales of a vernier callipers and explain how it is used to measure length correct up to 0.01 cm.
Name the instrument which has the least count
0.1 mm
The diameter of a thin wire can be measured by
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 term least count of screw?
What do you understand by the following term as applied to screw gauge?
Negative zero error
How do you account for negative zero error, for calculating the correct diameter of wires?
The precision of vernier calipers is ______ mm.
