Define least count of any device.
What do you know about pitch of scr
gauge?
Can you find the diameter of a thin w
of length 2 m using the ruler from y
instrument box?
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1)Least count of any device.
The smallest length which can be be measured by metre scale is called least count.
Least count of the instrument (L.C)
= Value of one main scale division / Total number of vernier calipher division.
2)What do you know about pitch of screw gauge?
The pitch of screw is the distance moved by the tip of the screw for one complete rotation of the head.
3)Can you find the diameter of a thin wire of length 2m?
No ,we can use vernier calipher to measure the diameter of a thin wire of length 2m.
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