Question

Select One Option Correct from the following : 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 oscilla- tions. The observations are shown in the table. The least count for length is 0.1 cm and least count for time is 0.1 s.If $E_I, E_{II} and E_{III}$ are the percentage errors in g i.e., ($\frac{\Delta g}{g} \times 100$) for students I, II and III, respectively,
(A)$E_I = 0$
(B)$E_I$ is minimum
(C)$E_I = E_{II}$
(D)$E_{II}$ is maximum

Answer 1

b option is correct I think

Answer 2

lengths of the pendulum and/or record time for different number of oscilla- tions. The observations are shown in the table. The least count for length is 0.1 cm and least count for time is 0.1 s.If $E_I, E_{II} and E_{III}$ are the percentage errors in g i.e., ($\frac{\Delta g}{g} \times 100$) for students I, II and III, respectively,

(A)$E_I = 0$

✔️ (B)$E_I$ is minimum

(C)$E_I = E_{II}$

(D)$E_{II}$ is maximum