Ashwin is required to take the measurement of a wooden box. He repeatedly gets the wrong reading. Maybe something is wrong with positioning of his eye. Which of the following should be the proper position of his eye for taking the reading?
Ashwin must keep his eye directly in front of the scale rather than making some angle. In other words, he has to keep his eye exactly on top of the numbers on the scale i.e. eye has to be perpendicular to the scale.