how can we record the length by main scale?
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Explanation:
Length recorded = Main scale reading + L.C. × V.S.D. The least count of a vernier callipers is 0.01 cm and it has an error of + 0.07 cm. While measuring the radius of a sphere, the main scale reading is 2.90 cm and the 5th vernier scale division coincides with main scale
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