In a vernier callipers 20 vernier division are equal to 19 main scale division and each main scale division is 1mm the least count of vernier callipers is
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the least count is 0.05 mm
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20VSD=19MSD
1VSD=19/20MSD
LC= 1MSD-1VSD
(1-19/20)*1MM
0.05MM
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