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there-are-20-divisions-in-4-cm-of-the-main-scale

Question

There are 20 divisions in 4 cm of the main scale. The vernier scale has 10 divisions. The least count of the instrument is

[A] 0.05 cm

[B] 0.5 cm

[C] 5.0 cm

[D] 0.005 cm

Answer & Explanation
Answer: 0.005 cm

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