Question

The mean time period of second's pendulum is $2.00 \, s$ and mean absolute error in the time period is $0.05 \, s$ . To express maximum estimate of error, the time period should be written as

• A. $\left(2.00 \pm 0.01\right) \, s$
• B. $\left(2.00 \pm 0.025\right) \, s \, $
• C. $\left(2 .00 \pm 0 .05\right) \, s \, $
• D. $\left(2.00 \pm 0.10\right) \, s$

Answer 1

Answer: (C)

Mean time period $T=2.00 \, s$ and Mean absolute error $=\Delta T=0.05 \, s$
To express maximum estimate of error, the time period should be written as $\left(2.0 \pm 0.05\right) \, s$