alleryOn a caliper, 20 vernier divisions match 19 main divisions of 1 mm each. What is the least count?
A0.5 mm
B0.02 mm
C0.1 mm
D0.05 mm
Answer & Solution
Correct answer: D. 0.05 mm
With n equal to 20 and S equal to 1 mm, the least count S/n is 0.05 mm.
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