Students I, II and III perform an experiment for measuring the acceleration due to gravity ( g ) using a simple pendulum. They use different lengths of the pendulum and/or record time for different number of oscillations. The observations are shown in the table.
Least count for length $=0.1 \mathrm{~cm}$
Least count for time $=0.1 \mathrm{~s}$
If $\mathrm{E}_{\mathrm{I}}, \mathrm{E}_{\mathrm{II}}$ and $\mathrm{E}_{\mathrm{III}}$ are the percentage errors in g , i.e., $\left(\frac{\Delta \mathrm{g}}{\mathrm{g}} \times 100\right)$ for students I, II and III, respectively,
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If $\mathrm{E}_{\mathrm{I}}, \mathrm{E}_{\mathrm{II}}$ and $\mathrm{E}_{\mathrm{III}}$ are the percentage errors in g , i.e., $\left(\frac{\Delta \mathrm{g}}{\mathrm{g}} \times 100\right)$ for students I, II and III, respectively,
