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What is the zero error of a screw gauge? - Physics

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Question

What is the zero error of a screw gauge?

One Line Answer

Solution

If the zero of the circular scale does not coincide with the zero of the main scale (pitch scale) when the end of the movable screw is brought in contact with the fixed end then the screw gauge is said to have a zero error.
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Vernier Callipers
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Chapter 1: Measurement - Exercise 5 [Page 48]

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Frank Physics [English] Class 9 ICSE
Chapter 1 Measurement
Exercise 5 | Q 44 | Page 48
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