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Q.

A second's pendulum has a mean time period of 2.00 s. The mean absolute error in the time period is 0.05 s. How the time period should be written to express the maximum estimate of error?

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a

(2.00±0.05)s

b

(2.00±0.10)s

c

(2.00±0.01)s

d

(2.00±0.025)s

answer is C.

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Detailed Solution

Mean time period T = 2.00 sec

And Mean absolute error

=ΔT=0.05sec

To express maximum estimate of error, the time period should be written as

2.00±0.05sec

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