in a vernier caliper the main scale division is callibrated in mm and 19 main scale division is equal to 20 vernier scale division . calculate the least count
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The main scale of a vernier callipers is calibrated in mm and 19 divisions of main scale are equal in length to 20 divisions of vernier scale. In measuring the diameter of a cylinder by this instrument, the main scale reads 35 divisions and 4th division of vernier scale coincides with a main scale division.
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