Question

to avoid parallax error while measuring we must view to object option a. from a position on its right b. from a position on its left c.from a position perpendicularly above it d.from its apparent position​

Answer 1

Answer:

Option c [ from a position perpendicularly above it ]

Explanation:

1)The scale should be placed to the side of the object being measured. It should also be in touch with the object being measured. 2)While reading the scale, eye must be placed vertically above the scale mark being read. If the the eye is not vertically above the scale mark being read, then the reading becomes wrong.

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