(a)(i)Define the least count of an instrument.
(ii) What is the least count of a standard laboratory micrometer screw
gauge?
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Least count is the smallest measurement that can be taken by a measuring instrument. ... The least count is related to the precision of an instrument; an instrument that can measure smaller changes in a value relative to another instrument, has a smaller "least count" value and so is more precise.
The least count of screw gauge is 0.001 cm. A micrometer may have a least count of 0.001 mm.
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Answer:
the least count of an instrument is the smallest measurment that can be taken accurately with it
Explanation:
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