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Time periods of oscillation of the same simple pendulum measured using four different measuring clocks were recorded as 4.62 ~s , 4.632 ~s , 4.6 ~s and 4.64 ~s . The arithmetic mean of these readings in correct significant figure is :

Options

  1. A5 ~s
  2. B4.623 ~s
  3. C4.6 ~s
  4. D4.62 ~s

Correct answer

C. 4.6 ~s

Step-by-step solution

Sum of number by considering significant digi sum =4.6+4.6+4.6+4.6=18.4 Arithmetic Mean = sum 4 = 18.4 4 =4.6

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