Neco 2022 Physics Question 13

Practice objective / multiple choice question 13 from the 2022 Neco Physics examination.

Neco 2022 Physics Objective / Multiple Choice Hard Difficulty

Question 13 NECO • 2022 • PHYSICS • objective

In a pendulum experiment the length of the pendulum is measured with a meter rule (least count 1\,mm) as \(L = 1.000\ \text{m} \pm 0.001\ \text{m}\). The period is measured with a stopwatch (resolution 0.01\,s). Ten trials give an average period \(T = 2.01\ \text{s}\) with a standard deviation of \(0.02\ \text{s}\).\n\nUsing \(g = \dfrac{4\pi^{2}L}{T^{2}}\), calculate the value of \(g\) and its absolute uncertainty, expressing the result as \(g \pm \Delta g\) (to two significant figures). Also state the percentage uncertainty.

Correct Answer A. 9.77 \pm 0.20 m·s^{-2}

B. 9.65 \pm 0.30 m·s^{-2}

C. 9.73 \pm 0.25 m·s^{-2}

D. 9.81 \pm 0.15 m·s^{-2}

Correct Answer

Correct Option:

9.77 \pm 0.20 m·s^{-2}

This is Neco 2022 Physics Question 13. It is one of the objective questions from the 2022 Neco Physics examination.

Difficulty level: Hard .

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