4. Define least count of any device.
5. What do you know about pitch of screw
gauge?
6. Can you find the diameter of a thin wire
of length 2 m using the ruler from your
instrument box?
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1.The smallest value that can be measured by the measuring instrument is called its least count. Measured values are good only up to this value. ... A Vernier scale on a caliper may have a least count of 0.1 mm while a micrometer may have a least count of 0.01 mm...
5.Pitch: Pitch of the screw gauge is defined as the distance moved by the spindle per revolution which is measured by moving the head scale over the pitch scale in order to complete one full rotation.
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