A vernier callipers has 20 divisions on the vernier scale, which coincides with 1 9 th division on the main scale. The least count of the instrument is 0.1 mm . One main scale division is equal to ___

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A vernier callipers has 20 divisions on the vernier scale, which coincides with 1 9 th division on the main scale. The least count of the instrument is 0.1 mm . One main scale division is equal to _____ mm .

TestHub · Accepted Answer

​ 20 VSD = 19 MSD 1 VSD = 20 19 ​ MSD L.C. = 1 MSD − 1 VSD 0.1 mm = 1 MSD − 20 19 ​ MSD 0.1 = 20 1 ​ MSD 1 MSD = 2 mm ​

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