03. Errors
Units and Measurements

139858 If a copper wire is stretched to make its radius decreased by \(0.1 \%\), then the percentage increase in resistance is approximately?

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

139862 While measuring acceleration due to gravity by a simple pendulum, a student makes a positive error of \(2 \%\) in the length of the pendulum and a positive error of \(1 \%\) in the value of time period, this actual percentage error in the measurement of the value of \(g\) will be

1 \(5 \%\)
2 \(4 \%\)
3 \(3 \%\)
4 \(0 \%\)
Units and Measurements

139863 Dimensional formula of a physical quantity \(X\) is \(\left[M^{-1} L^{3} T^{-2}\right]\) the errors is measuring the quantities \(\mathrm{M}, \mathrm{L}\) and \(\mathrm{T}\) respectively are \(\mathbf{2 \% , 3 \%}\) and \(4 \%\), The maximum percentage of error that occurs in measuring the quantity \(\mathrm{X}\) is:

1 9
2 10
3 14
4 19
Units and Measurements

139864 A clock with an iron pendulum keeps correct time at \(15^{\circ} \mathrm{C}\). If room temperature rises to \(20^{\circ} \mathrm{C}\), the error in seconds per day will be : (coefficient of linear expansion of iron is \(\mathbf{0 0 . 0 0 0 0 1 2} /{ }^{\circ} \mathrm{C}\) )

1 \(2.5 \mathrm{~s}\)
2 \(2.6 \mathrm{~s}\)
3 \(2.4 \mathrm{~s}\)
4 \(2.2 \mathrm{~s}\)
Units and Measurements

139858 If a copper wire is stretched to make its radius decreased by \(0.1 \%\), then the percentage increase in resistance is approximately?

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

139862 While measuring acceleration due to gravity by a simple pendulum, a student makes a positive error of \(2 \%\) in the length of the pendulum and a positive error of \(1 \%\) in the value of time period, this actual percentage error in the measurement of the value of \(g\) will be

1 \(5 \%\)
2 \(4 \%\)
3 \(3 \%\)
4 \(0 \%\)
Units and Measurements

139863 Dimensional formula of a physical quantity \(X\) is \(\left[M^{-1} L^{3} T^{-2}\right]\) the errors is measuring the quantities \(\mathrm{M}, \mathrm{L}\) and \(\mathrm{T}\) respectively are \(\mathbf{2 \% , 3 \%}\) and \(4 \%\), The maximum percentage of error that occurs in measuring the quantity \(\mathrm{X}\) is:

1 9
2 10
3 14
4 19
Units and Measurements

139864 A clock with an iron pendulum keeps correct time at \(15^{\circ} \mathrm{C}\). If room temperature rises to \(20^{\circ} \mathrm{C}\), the error in seconds per day will be : (coefficient of linear expansion of iron is \(\mathbf{0 0 . 0 0 0 0 1 2} /{ }^{\circ} \mathrm{C}\) )

1 \(2.5 \mathrm{~s}\)
2 \(2.6 \mathrm{~s}\)
3 \(2.4 \mathrm{~s}\)
4 \(2.2 \mathrm{~s}\)
Units and Measurements

139858 If a copper wire is stretched to make its radius decreased by \(0.1 \%\), then the percentage increase in resistance is approximately?

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

139862 While measuring acceleration due to gravity by a simple pendulum, a student makes a positive error of \(2 \%\) in the length of the pendulum and a positive error of \(1 \%\) in the value of time period, this actual percentage error in the measurement of the value of \(g\) will be

1 \(5 \%\)
2 \(4 \%\)
3 \(3 \%\)
4 \(0 \%\)
Units and Measurements

139863 Dimensional formula of a physical quantity \(X\) is \(\left[M^{-1} L^{3} T^{-2}\right]\) the errors is measuring the quantities \(\mathrm{M}, \mathrm{L}\) and \(\mathrm{T}\) respectively are \(\mathbf{2 \% , 3 \%}\) and \(4 \%\), The maximum percentage of error that occurs in measuring the quantity \(\mathrm{X}\) is:

1 9
2 10
3 14
4 19
Units and Measurements

139864 A clock with an iron pendulum keeps correct time at \(15^{\circ} \mathrm{C}\). If room temperature rises to \(20^{\circ} \mathrm{C}\), the error in seconds per day will be : (coefficient of linear expansion of iron is \(\mathbf{0 0 . 0 0 0 0 1 2} /{ }^{\circ} \mathrm{C}\) )

1 \(2.5 \mathrm{~s}\)
2 \(2.6 \mathrm{~s}\)
3 \(2.4 \mathrm{~s}\)
4 \(2.2 \mathrm{~s}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Units and Measurements

139858 If a copper wire is stretched to make its radius decreased by \(0.1 \%\), then the percentage increase in resistance is approximately?

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

139862 While measuring acceleration due to gravity by a simple pendulum, a student makes a positive error of \(2 \%\) in the length of the pendulum and a positive error of \(1 \%\) in the value of time period, this actual percentage error in the measurement of the value of \(g\) will be

1 \(5 \%\)
2 \(4 \%\)
3 \(3 \%\)
4 \(0 \%\)
Units and Measurements

139863 Dimensional formula of a physical quantity \(X\) is \(\left[M^{-1} L^{3} T^{-2}\right]\) the errors is measuring the quantities \(\mathrm{M}, \mathrm{L}\) and \(\mathrm{T}\) respectively are \(\mathbf{2 \% , 3 \%}\) and \(4 \%\), The maximum percentage of error that occurs in measuring the quantity \(\mathrm{X}\) is:

1 9
2 10
3 14
4 19
Units and Measurements

139864 A clock with an iron pendulum keeps correct time at \(15^{\circ} \mathrm{C}\). If room temperature rises to \(20^{\circ} \mathrm{C}\), the error in seconds per day will be : (coefficient of linear expansion of iron is \(\mathbf{0 0 . 0 0 0 0 1 2} /{ }^{\circ} \mathrm{C}\) )

1 \(2.5 \mathrm{~s}\)
2 \(2.6 \mathrm{~s}\)
3 \(2.4 \mathrm{~s}\)
4 \(2.2 \mathrm{~s}\)