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Q: Which errors are small unavoidable fluctuation?
  • A. Random
  • B. Gross
  • C. Systematic
  • D. Mistake
Correct Answer: Option A - Random error– Random error are those discrepancies remaining after the mistakes and systematic errors are removed. • It is mainly caused by limitations of observer and instruments and are random in nature. Systematic error– Systematic error arises from the source that act in a similar manner on observations. • The method of measurement, the instrument used and the physical conditions at the time of measurement causes systematic error.
A. Random error– Random error are those discrepancies remaining after the mistakes and systematic errors are removed. • It is mainly caused by limitations of observer and instruments and are random in nature. Systematic error– Systematic error arises from the source that act in a similar manner on observations. • The method of measurement, the instrument used and the physical conditions at the time of measurement causes systematic error.

Explanations:

Random error– Random error are those discrepancies remaining after the mistakes and systematic errors are removed. • It is mainly caused by limitations of observer and instruments and are random in nature. Systematic error– Systematic error arises from the source that act in a similar manner on observations. • The method of measurement, the instrument used and the physical conditions at the time of measurement causes systematic error.