NEET · Physics · STD 11 - 1. units,dimensions and measurement
Time intervals measured by a clock give the following readings : \(1.25 \;s , 1.24\; s , 1.27\; s , 1.21 \;s\) and \(1.28\; s\) What is the percentage relative error of the observations?
- A \(1.6\)
- B \(2\)
- C \(4\)
- D \(16\)
Answer & Solution
Correct Answer
(A) \(1.6\)
Step-by-step Solution
Detailed explanation
The arithmetic mean of given values is taken as true value. \(t _{\text {mean }}=\frac{t_{1}+ t _{2}+ t _{3}+ t _{4}+ t _{5}}{5}\)
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