Home » A student measures a piece of rope and found that it was 1.26m long. If…

A student measures a piece of rope and found that it was 1.26m long. If…

A student measures a piece of rope and found that it was 1.26m long. If the actual length of the rope was 1.25m, what was the percentage error in the measurement?
  • A.
    0.25%
  • B.
    0.01%
  • C.
    0.80%
  • D.
    0.40%
Correct Answer: Option C
Explanation

Actual length of rope = 1.25mMeasured length of rope = 1.26merror = (1.26 – 1.25)m – 0.01mPercentage error = (frac{error}{text{actual length}}) x 100%= (frac{0.01}{1.25}) x 100% = 0.08%

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