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Question
What kind of error occur if viewing the mark on the ruler is not proper.How can we avoid it ?
What kind of error occur if viewing the mark on the ruler is not proper.How can we avoid it ?
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Solution
Parallax error occur if viewing the mark on the ruler is not proper.This error occur when measurement of length of object is less than or greater than the true length of the object.We can avoid this error, while looking ruler placed horizontally ,we should be vertically above the mark we are reading.
Parallax error occur if viewing the mark on the ruler is not proper.This error occur when measurement of length of object is less than or greater than the true length of the object.We can avoid this error, while looking ruler placed horizontally ,we should be vertically above the mark we are reading.
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