JEE Physics · Hard

Errors and Measurements: Systematic Error Detection MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Systematic Error DetectionHardQuestion 30188

Question

A student consistently gets a measured value of gravity as 9.75 m/s² when the accepted value is 9.81 m/s². This is most likely due to:
  1. A
    Random error
  2. B
    Parallax error
  3. C
    Systematic error in timing or length
    Correct
  4. D
    Human error only

Correct answer

Systematic error in timing or length

Explanation

A consistent offset from the true value in one direction indicates a systematic error — likely miscalibrated length or stopwatch.