Zero error of the instrument is a type of_________________?
Correct answer: C. Systematic error
- A. Random error
- B. Personal error
- C. Systematic error
- D. Classified error
Explanation
Zero error produces a consistent offset in every reading, so it is a systematic error rather than a random fluctuation. It can often be detected and corrected by checking the instrument before measurement. Students may choose random error because all measurements can be affected by error, but random errors do not have a fixed direction or size.
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About Displacement and Velocity
Displacement is the directed change in position, while velocity is the rate of change of displacement and includes both magnitude and direction. The topic connects position-time and velocity-time graphs with average and instantaneous values, and distinguishes displacement from distance and velocity from speed.
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