Question

# arises when the reading of a scale is taken from a random angle.Numerical errorZero errorParallax error

Solution

## The correct option is C Parallax errorParallax error arises when the reading is taken from a random angle. It is a non-technical (human) error in which there is a difference in the readings if the readings are taken at different angles from the line of sight. So to avoid this error we must always take the readings by positioning our sight just perpendicularly above the markings.

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