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Standard VIII

Physics

Accuracy and Precision

What is the c...

Question

What is the condition for zero error in screw gauge ?

When zero of circular scale is not coinciding with the datum line

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When zero of circular scale is coinciding with the datum line

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There is no specific condition for zero error

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None of the above

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Solution

The correct option is A When zero of circular scale is not coinciding with the datum line
If the zero is not coinciding with the datum line, there will be a positive or negative zero error as shown in figure.

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What is the condition for zero error in screw gauge ?

The correct option is A When zero of circular scale is not coinciding with the datum lineIf the zero is not coinciding with the datum line, there will be a positive or negative zero error as shown in figure.

The correct option is A When zero of circular scale is not coinciding with the datum line
If the zero is not coinciding with the datum line, there will be a positive or negative zero error as shown in figure.