Time periods of oscillation of the same simple pendulum measured using four different measuring clocks were recorded as 4.62s,4.632s,4.6s and 4.64s. The arithmetic mean of these reading in correct significant figure is.
Select the correct option:
A
4.623s
B
4.62s
C
4.6s
D
5s
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
Sum of number by considering significant digit sum $=4.6+4.6+4.6+4.6=18.4$
$$
\text { Arithmetic Mean }=\frac{\text { sum }}{4}=\frac{18.4}{4}=4.6
$$
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