In successive measurement, the reading of the period of oscillation of a simple pendulum were found to be 2.63s, 2.56s, 2.71s and 2.80s in an experiment. Calculate (i) mean value of the period oscillation (ii) absolute errer in each measurement (iii) mean absolute error (iv) releative error (v) percentage error and (vi) express the result in proper form.

Explanation

To solve the problem step by step, we will follow the instructions given in the question.

### Step 1: Calculate the Mean Value of the Period of Oscillation
To find the mean value, we sum all the measurements and divide by the number of measurements.

Given measurements:
- \( t_1 = 2.63 \, s \)
- \( t_2 = 2.56 \, s \)
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