Rajesh measures the length of a box to be 30cm using a scale that has a broken left end. The actual length of the box is 29cm. What is the zero error?
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Solution
The correct option is A 1 Zero error is the error that occurs when the length of an object is measured using a scale that has a damaged zero mark or broken left end.
Given, Actual value = 29cm, Measured value = 30cm.
Zero error = Measured value - actual value Zero error = 30cm−29cm=1cm