Question

Thickness of the paper measured by micrometer screw gauge of least count 0.01 mm is 1.03 mm, the percentage error in the measurement of thickness of paper is ______.

Options

• 1.1%

• 1%

• 0.97%

• 0.8%

Answer 1

Thickness of the paper measured by micrometer screw gauge of least count 0.01 mm is 1.03 mm, the percentage error in the measurement of thickness of paper is 0.97%.

Explanation:

\[\begin{aligned} \text{Percentage error} & =\left({\frac{\Delta\mathrm{d}}{\mathrm{d}}}\times100\right)\% \\ & =\left(\frac{0.01}{1.03}\times100\right)\% \\ & =0.97 \end{aligned}\]