JEE (Advanced) 2008 Paper-1

Question 24

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 cm
Least count for time = 0.1 s

If $$E_I, E_{II}$$ and $$E_{III}$$ are the percentage errors in g, i.e., $$\left(\frac{\triangle g}{g} \times 100\right)$$ for students I, II and III, respectively,


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