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Question 30149
JEE Physics · Medium

Errors and Measurements: Random Error Reduction MCQ

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Random Error ReductionMediumQuestion 30149

Question

Which of the following reduces random error in an experiment?
  1. A
    Replacing the instrument
  2. B
    Increasing the number of readings and averaging
    Correct
  3. C
    Checking for zero error
  4. D
    Using a less sensitive instrument

Correct answer

Increasing the number of readings and averaging

Explanation

Random errors follow a statistical distribution; averaging over many trials reduces the standard error of the mean.

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