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

269247 The measured mass and volume of a body are \(53.63 \mathrm{~g}\) and \(5.8 \mathrm{~cm}^{3}\) respectively, with possible errors of \(0.01 \mathrm{~g}\) and \(0.1 \mathrm{~cm}^{3}\). The maximum percentageerror in density is about

1 \(0.2 \%\)
2 \(2 \%\)
3 \(5 \%\)
4 \(10 \%\)
Units and Measurements

269248 A vernier calipers has \(1 \mathrm{~mm}\) marks on the main scale. It has 20 equal divisions on the vernier scale,which match with 16 main scale divisions. For this vernier calipers the least count is

1 \(0.02 \mathrm{~mm}\)
2 \(0.05 \mathrm{~mm}\)
3 \(0.1 \mathrm{~mm}\)
4 \(0.2 \mathrm{~mm}\)
Units and Measurements

269249 The resistance of metal is given by \(V=I R\).
The voltage in the resistance is \(V=(8 \pm 0.5)\)
V and current in the resistance is \(I=(2 \pm 0.2) \mathbf{A}\), the value of resistance with its percentage error is

1 \((4 \pm 16.25 \%) \Omega\)
2 \((4 \pm 2.5 \%) \Omega\)
3 \((4 \pm 0.04 \%) \Omega\)
4 \((4 \pm 1 \%) \Omega\)
Units and Measurements

269250 In an experiment, the values of refractive indices of glass were found to be 1.54, 1.53, \(1.44,1.54,1.56\) and 1.45 in successive measurements i) mean value of refractive index of glass ii) mean absolute error
iii) relative error and iv) percentage error are respectively,

1 \(1.51,0.04,0.03,3 \%\)
2 \(1.51,0.4,0.03,3 \%\)
3 \(15.1,0.04,0.03,3 \%\)
4 \(15.1,0.04,0.3,3 \%\)
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Units and Measurements

269247 The measured mass and volume of a body are \(53.63 \mathrm{~g}\) and \(5.8 \mathrm{~cm}^{3}\) respectively, with possible errors of \(0.01 \mathrm{~g}\) and \(0.1 \mathrm{~cm}^{3}\). The maximum percentageerror in density is about

1 \(0.2 \%\)
2 \(2 \%\)
3 \(5 \%\)
4 \(10 \%\)
Units and Measurements

269248 A vernier calipers has \(1 \mathrm{~mm}\) marks on the main scale. It has 20 equal divisions on the vernier scale,which match with 16 main scale divisions. For this vernier calipers the least count is

1 \(0.02 \mathrm{~mm}\)
2 \(0.05 \mathrm{~mm}\)
3 \(0.1 \mathrm{~mm}\)
4 \(0.2 \mathrm{~mm}\)
Units and Measurements

269249 The resistance of metal is given by \(V=I R\).
The voltage in the resistance is \(V=(8 \pm 0.5)\)
V and current in the resistance is \(I=(2 \pm 0.2) \mathbf{A}\), the value of resistance with its percentage error is

1 \((4 \pm 16.25 \%) \Omega\)
2 \((4 \pm 2.5 \%) \Omega\)
3 \((4 \pm 0.04 \%) \Omega\)
4 \((4 \pm 1 \%) \Omega\)
Units and Measurements

269250 In an experiment, the values of refractive indices of glass were found to be 1.54, 1.53, \(1.44,1.54,1.56\) and 1.45 in successive measurements i) mean value of refractive index of glass ii) mean absolute error
iii) relative error and iv) percentage error are respectively,

1 \(1.51,0.04,0.03,3 \%\)
2 \(1.51,0.4,0.03,3 \%\)
3 \(15.1,0.04,0.03,3 \%\)
4 \(15.1,0.04,0.3,3 \%\)
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Units and Measurements

269247 The measured mass and volume of a body are \(53.63 \mathrm{~g}\) and \(5.8 \mathrm{~cm}^{3}\) respectively, with possible errors of \(0.01 \mathrm{~g}\) and \(0.1 \mathrm{~cm}^{3}\). The maximum percentageerror in density is about

1 \(0.2 \%\)
2 \(2 \%\)
3 \(5 \%\)
4 \(10 \%\)
Units and Measurements

269248 A vernier calipers has \(1 \mathrm{~mm}\) marks on the main scale. It has 20 equal divisions on the vernier scale,which match with 16 main scale divisions. For this vernier calipers the least count is

1 \(0.02 \mathrm{~mm}\)
2 \(0.05 \mathrm{~mm}\)
3 \(0.1 \mathrm{~mm}\)
4 \(0.2 \mathrm{~mm}\)
Units and Measurements

269249 The resistance of metal is given by \(V=I R\).
The voltage in the resistance is \(V=(8 \pm 0.5)\)
V and current in the resistance is \(I=(2 \pm 0.2) \mathbf{A}\), the value of resistance with its percentage error is

1 \((4 \pm 16.25 \%) \Omega\)
2 \((4 \pm 2.5 \%) \Omega\)
3 \((4 \pm 0.04 \%) \Omega\)
4 \((4 \pm 1 \%) \Omega\)
Units and Measurements

269250 In an experiment, the values of refractive indices of glass were found to be 1.54, 1.53, \(1.44,1.54,1.56\) and 1.45 in successive measurements i) mean value of refractive index of glass ii) mean absolute error
iii) relative error and iv) percentage error are respectively,

1 \(1.51,0.04,0.03,3 \%\)
2 \(1.51,0.4,0.03,3 \%\)
3 \(15.1,0.04,0.03,3 \%\)
4 \(15.1,0.04,0.3,3 \%\)
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Units and Measurements

269247 The measured mass and volume of a body are \(53.63 \mathrm{~g}\) and \(5.8 \mathrm{~cm}^{3}\) respectively, with possible errors of \(0.01 \mathrm{~g}\) and \(0.1 \mathrm{~cm}^{3}\). The maximum percentageerror in density is about

1 \(0.2 \%\)
2 \(2 \%\)
3 \(5 \%\)
4 \(10 \%\)
Units and Measurements

269248 A vernier calipers has \(1 \mathrm{~mm}\) marks on the main scale. It has 20 equal divisions on the vernier scale,which match with 16 main scale divisions. For this vernier calipers the least count is

1 \(0.02 \mathrm{~mm}\)
2 \(0.05 \mathrm{~mm}\)
3 \(0.1 \mathrm{~mm}\)
4 \(0.2 \mathrm{~mm}\)
Units and Measurements

269249 The resistance of metal is given by \(V=I R\).
The voltage in the resistance is \(V=(8 \pm 0.5)\)
V and current in the resistance is \(I=(2 \pm 0.2) \mathbf{A}\), the value of resistance with its percentage error is

1 \((4 \pm 16.25 \%) \Omega\)
2 \((4 \pm 2.5 \%) \Omega\)
3 \((4 \pm 0.04 \%) \Omega\)
4 \((4 \pm 1 \%) \Omega\)
Units and Measurements

269250 In an experiment, the values of refractive indices of glass were found to be 1.54, 1.53, \(1.44,1.54,1.56\) and 1.45 in successive measurements i) mean value of refractive index of glass ii) mean absolute error
iii) relative error and iv) percentage error are respectively,

1 \(1.51,0.04,0.03,3 \%\)
2 \(1.51,0.4,0.03,3 \%\)
3 \(15.1,0.04,0.03,3 \%\)
4 \(15.1,0.04,0.3,3 \%\)