Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Units and Measurements

Question:

If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere will be :

Options:

2 %

4 %

6 %

8 %

Correct Answer:

6 %

Explanation:

Volume of sphere = \(\frac{4}{3}\)\(\pi\)R3

\(\frac{\Delta V}{V} = \frac{3 \Delta R}{R} \)

Percentage error:

(\(\frac{\Delta V}{V}×100) = 3(\frac{\Delta R}{R} ×100)\)

                                          =\(3 ×2%\)

                                          = 6%