Question

Percentage error in the measurement of a quantity is given by ______.

Options

• \[\frac{\Delta a}{n}\times100\%\]

• \[\Delta a\times100\%\]

• \[\frac{\Delta a}{a_m}\times100\%\]

• \[\frac{a_m}{\Delta a}\times100\%\]

Answer 1

Percentage error in the measurement of a quantity is given by \[\frac{\Delta a}{a_m}\times100\%\].

Explanation:

Percentage error is obtained by expressing the relative error in percent, i.e., multiplying the relative error Δa/a_m​ by 100.