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Question 5025
NEET Physics · Medium

Units & Measurements: Error Propagation MCQ

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Error PropagationMediumQuestion 5025

Question

Using g = 4π²l/T², length has a maximum error of 1% and period 2%. What is the first-order maximum percentage error in g?
  1. A
    5%
    Correct
  2. B
    3%
  3. C
    1%
  4. D
    6%

Correct answer

5%

Explanation

g = 4π²l/T². % error in g = % error in l + 2×% error in T = 1% + 2×2% = 5%.

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