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JEE Mains · Physics · STD 11 - Units,dimensions and measurement
- JEE Mains 2020
- Medium
- MCQ
A student measuring the diameter of a pencil of circular cross-section with the help of a vernier scale records the following four readings \(5.50\, mm , 5.55\, mm ,\)\( 5.45\, mm ; 5.65\, mm .\) The average of these four readings is \(5.5375\, mm\) and the standard deviation of the data is \(0.07395\, mm .\) The average diameter of the pencil should therefore be recorded as
Pick an option to check your answer.
Answer & Solution
Correct Answer
(C) \((5.54 \pm 0.07)\, mm\)
Step-by-step Solution
Detailed explanation
Use significant figures. Answer must be upto three significant figures.
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