WAEC Physics 2012 Objective — Question 11

Question 11 of 50 from the West African Examinations Council (WAEC) Physics 2012 Objective paper, with the correct answer and a full explanation.

Two simple pendula A and B of equal lengths and of masses 5 g and 20 g respectively are located in the same environment. The periods TA and TB of their respective oscillations are related by the equations

A. A. TA = 4TB
B. B. TA = 1/4 TB
C. C. TA = TBCorrect
D. D. TA = 5TB

Explanation

The period of a simple pendulum is independent of the mass and depends only on length and g. Since both pendula are of equal length in the same environment, TA = TB.

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