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Error due to the line of collimation not being perpendicular to the horizontal axis comes under ________ error.

Error due to the line of collimation not being perpendicular to the horizontal axis comes under ________ error. Correct Answer instrumental

Instrumental errors are due to imperfect adjustment of an instrument, structural defects in the instrument and imperfections due to wear. Error due to the line of collimation not being perpendicular to the horizontal axis also comes under instrumental error.

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