While talking the readings on scale eyes should placed perpendicular to the point of measurement give scientific reasons
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Parallax error can occur if the eyes are not placed perpendicular to the scale while taking readings. parallax erroe is the stretching or shrinkage of an object's actual lenght when light from the objects cone and strike your eyes.
to avoid this error, we advice you to look horizontally straight towards the scientific scale while readings in a lab.
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