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Question 30130
JEE Physics · Medium

Errors and Measurements: Absolute Error MCQ

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Absolute ErrorMediumQuestion 30130

Question

Five readings of a length are 4.40, 4.42, 4.38, 4.41, 4.39 cm. The mean absolute error is:
  1. A
    0.01 cm
    Correct
  2. B
    0.02 cm
  3. C
    0.03 cm
  4. D
    0.04 cm

Correct answer

0.01 cm

Explanation

Mean = 4.40. Deviations: 0.00, 0.02, 0.02, 0.01, 0.01. Mean absolute error = (0+0.02+0.02+0.01+0.01)/5 = 0.06/5 ≈ 0.01 cm.

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