A vernier caliper has 1 mm marks on the main scale. It has 20 equal divisions on vernier scale which match 16 main scale divisions. For the vernier calipers, the least count is
A
0.2 mm
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B
0.1 mm
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C
0.02 mm
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D
0.05 mm
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Solution
The correct option is A 0.2 mm 5 VSD = 4 MSD
1 VSD = 0.8 mm
LC= 1 MSD - 1 VSD = 0.2 mm