The period of oscillation of a simple pendulum is given by T = 2π\(\sqrt{\frac{1}{g}}\) where is about 100 cm and is known to have 1 mm accuracy. The period is about 2s. The time of 100 oscillations is measured by a stopwatch of least count 0.1s. The percentage error in g is
A. 0.1%
B. 1%
C. 0.2%
D. 0.8%
Answer:C
The period of oscillation of a simple pendulum is given by T = 2π\(\sqrt{\frac{1}{g}}\) where is about 100 cm and is known to have 1 mm accuracy. The period is about 2s. The time of 100 oscillations is measured by a stopwatch of least count 0.1s. The percentage error in g is
A. 0.1% B. 1% C. 0.2% D. 0.8%