ACCURACY,PRECISION,TYPESOF ERRORSAND COM BINATION OF ERRORS
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Units and Measurements

269123 If the length of a cylinder is measured to be\(4.28 \mathrm{~cm}\) with an error of \(0.01 \mathrm{~cm}\), the percentage error in the measured length is nearly

1 \(0.4 \%\)
2 \(0.5 \%\)
3 \(0.2 \%\)
4 \(0.1 \%\)
Units and Measurements

269124 When 10 observations are taken, the random error is\(\mathrm{x}\). When 100 observations are taken, the random error becomes

1 \(x / 10\)
2 \(x^{2}\)
3 \(10 x\)
4 \(\sqrt{x}\)
Units and Measurements

269125 If \(L_{1}=(2.02 \pm 0.01) \mathrm{m}\) and \(L_{2}=(1.02 \pm 0.01) \mathrm{m}\) then \(L_{1}+2 L_{2}\) is (in \(\mathbf{~ m}\) )

1 \(4.06 \pm 0.02\)
2 \(4.06 \pm 0.03\)
3 \(4.06 \pm 0.005\)
4 \(4.06 \pm 0.01\)
Units and Measurements

269126 A body travels uniformly a distance of\((20.0 \pm 0.2) \mathrm{m}\) in time \((4.0 \pm 0.04) \mathrm{s}\). The velocity of the body is

1 \((5.0 \pm 0.4) \mathrm{ms}^{-1}\)
2 \((5.0 \pm 0.2) \mathrm{ms}^{-1}\)
3 \((5.0 \pm 0.6) \mathrm{ms}^{-1}\)
4 \((5.0 \pm 0.1) \mathrm{ms}^{-1}\)
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Units and Measurements

269123 If the length of a cylinder is measured to be\(4.28 \mathrm{~cm}\) with an error of \(0.01 \mathrm{~cm}\), the percentage error in the measured length is nearly

1 \(0.4 \%\)
2 \(0.5 \%\)
3 \(0.2 \%\)
4 \(0.1 \%\)
Units and Measurements

269124 When 10 observations are taken, the random error is\(\mathrm{x}\). When 100 observations are taken, the random error becomes

1 \(x / 10\)
2 \(x^{2}\)
3 \(10 x\)
4 \(\sqrt{x}\)
Units and Measurements

269125 If \(L_{1}=(2.02 \pm 0.01) \mathrm{m}\) and \(L_{2}=(1.02 \pm 0.01) \mathrm{m}\) then \(L_{1}+2 L_{2}\) is (in \(\mathbf{~ m}\) )

1 \(4.06 \pm 0.02\)
2 \(4.06 \pm 0.03\)
3 \(4.06 \pm 0.005\)
4 \(4.06 \pm 0.01\)
Units and Measurements

269126 A body travels uniformly a distance of\((20.0 \pm 0.2) \mathrm{m}\) in time \((4.0 \pm 0.04) \mathrm{s}\). The velocity of the body is

1 \((5.0 \pm 0.4) \mathrm{ms}^{-1}\)
2 \((5.0 \pm 0.2) \mathrm{ms}^{-1}\)
3 \((5.0 \pm 0.6) \mathrm{ms}^{-1}\)
4 \((5.0 \pm 0.1) \mathrm{ms}^{-1}\)
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Units and Measurements

269123 If the length of a cylinder is measured to be\(4.28 \mathrm{~cm}\) with an error of \(0.01 \mathrm{~cm}\), the percentage error in the measured length is nearly

1 \(0.4 \%\)
2 \(0.5 \%\)
3 \(0.2 \%\)
4 \(0.1 \%\)
Units and Measurements

269124 When 10 observations are taken, the random error is\(\mathrm{x}\). When 100 observations are taken, the random error becomes

1 \(x / 10\)
2 \(x^{2}\)
3 \(10 x\)
4 \(\sqrt{x}\)
Units and Measurements

269125 If \(L_{1}=(2.02 \pm 0.01) \mathrm{m}\) and \(L_{2}=(1.02 \pm 0.01) \mathrm{m}\) then \(L_{1}+2 L_{2}\) is (in \(\mathbf{~ m}\) )

1 \(4.06 \pm 0.02\)
2 \(4.06 \pm 0.03\)
3 \(4.06 \pm 0.005\)
4 \(4.06 \pm 0.01\)
Units and Measurements

269126 A body travels uniformly a distance of\((20.0 \pm 0.2) \mathrm{m}\) in time \((4.0 \pm 0.04) \mathrm{s}\). The velocity of the body is

1 \((5.0 \pm 0.4) \mathrm{ms}^{-1}\)
2 \((5.0 \pm 0.2) \mathrm{ms}^{-1}\)
3 \((5.0 \pm 0.6) \mathrm{ms}^{-1}\)
4 \((5.0 \pm 0.1) \mathrm{ms}^{-1}\)
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Units and Measurements

269123 If the length of a cylinder is measured to be\(4.28 \mathrm{~cm}\) with an error of \(0.01 \mathrm{~cm}\), the percentage error in the measured length is nearly

1 \(0.4 \%\)
2 \(0.5 \%\)
3 \(0.2 \%\)
4 \(0.1 \%\)
Units and Measurements

269124 When 10 observations are taken, the random error is\(\mathrm{x}\). When 100 observations are taken, the random error becomes

1 \(x / 10\)
2 \(x^{2}\)
3 \(10 x\)
4 \(\sqrt{x}\)
Units and Measurements

269125 If \(L_{1}=(2.02 \pm 0.01) \mathrm{m}\) and \(L_{2}=(1.02 \pm 0.01) \mathrm{m}\) then \(L_{1}+2 L_{2}\) is (in \(\mathbf{~ m}\) )

1 \(4.06 \pm 0.02\)
2 \(4.06 \pm 0.03\)
3 \(4.06 \pm 0.005\)
4 \(4.06 \pm 0.01\)
Units and Measurements

269126 A body travels uniformly a distance of\((20.0 \pm 0.2) \mathrm{m}\) in time \((4.0 \pm 0.04) \mathrm{s}\). The velocity of the body is

1 \((5.0 \pm 0.4) \mathrm{ms}^{-1}\)
2 \((5.0 \pm 0.2) \mathrm{ms}^{-1}\)
3 \((5.0 \pm 0.6) \mathrm{ms}^{-1}\)
4 \((5.0 \pm 0.1) \mathrm{ms}^{-1}\)
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