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प्रश्न
How does negative error arise in the instrument?
टिप्पणी लिखिए
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उत्तर
If the zero of the circular scale lies above the line of graduation then it is called negative zero error. When there is a negative zero error, then the instrument reads less than the actual reading. Therefore in order to get the correct reading, the zero error should always be added from the observed reading.
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Vernier Callipers
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संबंधित प्रश्न
When is a vernier Callipers said to be free from zero error?
A vernier callipers has a zero error of + 0.06 cm. Draw a neat labelled diagram to represent it.
State three uses of the vernier callipers.
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.
In figure for vernier callipers, calculate the length recorded.
Up to how many decimal places can a common vernier callipers measure the length in cm?
What do you mean by the term pitch of a screw gauge?
What is the least count in the case of the following instrument?
vernier calipers
Define the pitch of the screw gauge.
We can find the diameter of a wire by wrapping it around a pencil and measuring the length of turns with the help of a meter scale. Is this approach more accurate than determining the diameter of the wire with the help of a screw gauge?
