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 ......... $s$
  • A$0.1$
  • B$0.11$
  • C$0.01$
  • D$1.0$
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