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What is the zero error in the diagram?

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What is the zero error in the diagram?

(a)  + 0.03 mm

(b)  – 0.03 mm

(c)  + 0.03 cm

(d)  – 0.03 cm

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1 Answer

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Best answer

Correct option (b) – 0.03 mm

Explanation:

0 of the circular scale is up to the refrence line, so, it is '– ve' and 3rd division coincides with refrence line, so zero error is = –0.03 mm.

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