The period of oscillation of a simple pendulum in the experiment is recorded as 2.63 s, 2.56 s, 2.42 s, 2.71 s and 2.80 s respectively. The average absolute error is

(1) 0.1 s

(2) 0.11 s

(3) 0.01 s

(4) 1.0 s

Concept Videos :-

#3 | Error Analysis : Definitions, Mathematical Modeling
#4 | Error Analysis : Modeling of Errors & Propagation of Error
#5 | Error Analysis : Propagation of Error (Division) & Example

Concept Questions :-

(2) Average value =2.63+2.56+2.42+2.71+2.805

=2.62sec

Now |ΔT1|=2.632.62=0.01

|ΔT2|=2.622.56=0.06

|ΔT3|=2.622.42=0.20

|ΔT4|=2.712.62=0.09**

|ΔT5|=2.802.62=0.18

Mean absolute error

ΔT=|ΔT1|+|ΔT2|+|ΔT3|+|ΔT4|+|ΔT5|5

=0.545=0.108=0.11sec 

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