Why should the zero mark of a metre rule coincide with one edge of the object?

  • A To increase the object length
  • B To avoid incorrect starting reading
  • C To convert cm into mm
  • D To reduce the weight of the ruler
Correct Answer: Option B — To avoid incorrect starting reading
Explanation:
The reading is taken from the zero mark to the other edge, so the zero mark must be properly aligned with one edge of the object.
Submitted by: PaperMCQs
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