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

Options

A. `(2.00 +- 0.01)s`
B. `(2.00 +- 0.025)s`
C. `(2.00 +- 0.05)s`
D. `(2.00 +- 0.10)s`

Answer

C

Explanation

Mean time period `T = 2.00 sec`
Mean absolate error `Delta T = 0.05 sec`
To express maximum extimte of error , the time period should be written and `(2.00 +- 0.05)sec`