Home/
Competitive Exams/
NEET/
Physics/
Units & Measurements/
Question 5025
NEET Physics · Medium

Units & Measurements: Error Propagation MCQ

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

Timer-based practiceDetailed answer reviewMobile-friendly flow
Error PropagationMediumQuestion 5025

Question

In the formula T = 2π√(l/g), if l is measured with 1% error and T with 2% error, the error in g is:
  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%.

Review Units & Measurements notesStart timed chapter practice