Errors
PHXI02:UNITS AND MEASUREMENTS

367456 Assertion :
Out of three measurements \(l=0.7 \mathrm{~m} ; l=0.70 \mathrm{~m}\) and \(l=0.700 \mathrm{~m}\), the last one is most accurate.
Reason :
In every measurement, only the last significant digit is not accurately known.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI02:UNITS AND MEASUREMENTS

367457 The mean length of an object is 5 \(cm\). Which is the following measurements is most accurate?

1 \(5.4\,cm\)
2 \(5.25\,cm\)
3 \(4.9\,cm\)
4 \(4.805\,cm\)
PHXI02:UNITS AND MEASUREMENTS

367458 A body travels uniformly a distance \((13.8 \pm 0.2)m\) in a time \((4.0 \pm 0.3)s\). Calculate its velocity with error limits. What is the percentage error in velocity?

1 \(5\% \)
2 \(12\% \)
3 \(7\% \)
4 \(9\% \)
PHXI02:UNITS AND MEASUREMENTS

367459 Statement A :
When percentage errors in the measurement of mass and velocity
are 2% and 3% respectively, the
percentage error in \(K\).\(E\). is 8%.
Statement B :
The percentage error relation for kinetic energy is
\(\frac{{\Delta K}}{K} \times 100\)
\( = \frac{{\Delta m}}{m} \times 100 + \frac{{2\Delta v}}{v} \times 100\)

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
PHXI02:UNITS AND MEASUREMENTS

367456 Assertion :
Out of three measurements \(l=0.7 \mathrm{~m} ; l=0.70 \mathrm{~m}\) and \(l=0.700 \mathrm{~m}\), the last one is most accurate.
Reason :
In every measurement, only the last significant digit is not accurately known.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI02:UNITS AND MEASUREMENTS

367457 The mean length of an object is 5 \(cm\). Which is the following measurements is most accurate?

1 \(5.4\,cm\)
2 \(5.25\,cm\)
3 \(4.9\,cm\)
4 \(4.805\,cm\)
PHXI02:UNITS AND MEASUREMENTS

367458 A body travels uniformly a distance \((13.8 \pm 0.2)m\) in a time \((4.0 \pm 0.3)s\). Calculate its velocity with error limits. What is the percentage error in velocity?

1 \(5\% \)
2 \(12\% \)
3 \(7\% \)
4 \(9\% \)
PHXI02:UNITS AND MEASUREMENTS

367459 Statement A :
When percentage errors in the measurement of mass and velocity
are 2% and 3% respectively, the
percentage error in \(K\).\(E\). is 8%.
Statement B :
The percentage error relation for kinetic energy is
\(\frac{{\Delta K}}{K} \times 100\)
\( = \frac{{\Delta m}}{m} \times 100 + \frac{{2\Delta v}}{v} \times 100\)

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
PHXI02:UNITS AND MEASUREMENTS

367456 Assertion :
Out of three measurements \(l=0.7 \mathrm{~m} ; l=0.70 \mathrm{~m}\) and \(l=0.700 \mathrm{~m}\), the last one is most accurate.
Reason :
In every measurement, only the last significant digit is not accurately known.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI02:UNITS AND MEASUREMENTS

367457 The mean length of an object is 5 \(cm\). Which is the following measurements is most accurate?

1 \(5.4\,cm\)
2 \(5.25\,cm\)
3 \(4.9\,cm\)
4 \(4.805\,cm\)
PHXI02:UNITS AND MEASUREMENTS

367458 A body travels uniformly a distance \((13.8 \pm 0.2)m\) in a time \((4.0 \pm 0.3)s\). Calculate its velocity with error limits. What is the percentage error in velocity?

1 \(5\% \)
2 \(12\% \)
3 \(7\% \)
4 \(9\% \)
PHXI02:UNITS AND MEASUREMENTS

367459 Statement A :
When percentage errors in the measurement of mass and velocity
are 2% and 3% respectively, the
percentage error in \(K\).\(E\). is 8%.
Statement B :
The percentage error relation for kinetic energy is
\(\frac{{\Delta K}}{K} \times 100\)
\( = \frac{{\Delta m}}{m} \times 100 + \frac{{2\Delta v}}{v} \times 100\)

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
PHXI02:UNITS AND MEASUREMENTS

367456 Assertion :
Out of three measurements \(l=0.7 \mathrm{~m} ; l=0.70 \mathrm{~m}\) and \(l=0.700 \mathrm{~m}\), the last one is most accurate.
Reason :
In every measurement, only the last significant digit is not accurately known.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI02:UNITS AND MEASUREMENTS

367457 The mean length of an object is 5 \(cm\). Which is the following measurements is most accurate?

1 \(5.4\,cm\)
2 \(5.25\,cm\)
3 \(4.9\,cm\)
4 \(4.805\,cm\)
PHXI02:UNITS AND MEASUREMENTS

367458 A body travels uniformly a distance \((13.8 \pm 0.2)m\) in a time \((4.0 \pm 0.3)s\). Calculate its velocity with error limits. What is the percentage error in velocity?

1 \(5\% \)
2 \(12\% \)
3 \(7\% \)
4 \(9\% \)
PHXI02:UNITS AND MEASUREMENTS

367459 Statement A :
When percentage errors in the measurement of mass and velocity
are 2% and 3% respectively, the
percentage error in \(K\).\(E\). is 8%.
Statement B :
The percentage error relation for kinetic energy is
\(\frac{{\Delta K}}{K} \times 100\)
\( = \frac{{\Delta m}}{m} \times 100 + \frac{{2\Delta v}}{v} \times 100\)

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.