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Question
What is the least count in the case of the following instrument?
vernier calipers
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Solution
The least count of the following is
Vernier call pers = 0.01 cm
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RELATED QUESTIONS
What is meant by zero error of vernier callipers ? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
(a) A vernier scale has 10 divisions. It slides over the main scale, whose pitch is 1.0 mm. If the number of divisions on the left hand of zero of the vernier scale on the main scale is 56 and the 8th vernier scale division coincides with the main scale, calculate the length in centimetres.
(b) If the above instrument has a negative error of 0.07 cm, calculate the corrected length.
Define the term least count as applied to a vernier callipers.
State the formula for calculating length if:
The reading of the main scale is known and the number of vernier scale divisions coinciding with the main scale is known.
State the correction if the negative error is 7 divisions when the least count is 0.01 cm.
Figure shows a screw gauge in which circular scale has 200 divisions. Calculate the least count and radius of the wire.
For what range of measurement is micrometre screw gauge used?
What do you understand by the following term as applied to micrometre screw gauge?
Thimble
State whether the following statement is true or false by writing T/F against it.
The diameter of a wire can be measured more accurately by using vernier calipers than by a screw gauge.
