A vernier callipers has 20 divisions on the vernier scale, which coincides with 19th division on the main scale. The least count of the instrument is 0.1 mm. One main scale division is equal t $o ____mm.$
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Question

A vernier callipers has 20 divisions on the vernier scale, which coincides with 19th division on the main scale. The least count of the instrument is 0.1 mm. One main scale division is equal t $o ____mm.$

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G1 Physics · Accepted Answer

Given: 20 VSD = 19 MSD Therefore: 1 VSD = (19/20) MSD Least count: LC = 1 MSD - 1 VSD = (1/20) MSD Given: LC = 0.1 mm Therefore: 0.1 = MSD/20 1 MSD = 2 mm

A vernier callipers has 20 divisions on the vernier scale, which coincides with 19th division on the main scale. The least count of the instrument is 0.1 mm. One main scale division is equal t o ____mm.