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Q: While using an instrument for some measurement we place it in the wrong manner then possibly the error in result is:
  • A. instrument error
  • B. systematic error
  • C. environmental error
  • D. random error
Correct Answer: Option A - Instrument error– Error may arise due to imperfection or faulty adjustment of the instrument with which measurement is being taken. For example, a tape may be too long or an angle measuring instrument may be out of adjustment. Such error are known as instrument error.
A. Instrument error– Error may arise due to imperfection or faulty adjustment of the instrument with which measurement is being taken. For example, a tape may be too long or an angle measuring instrument may be out of adjustment. Such error are known as instrument error.

Explanations:

Instrument error– Error may arise due to imperfection or faulty adjustment of the instrument with which measurement is being taken. For example, a tape may be too long or an angle measuring instrument may be out of adjustment. Such error are known as instrument error.