WAEC Physics 2013 Objective — Question 24

Question 24 of 50 from the West African Examinations Council (WAEC) Physics 2013 Objective paper, with the correct answer and a full explanation.

The diagram above illustrates a waveform. Which of the points on the waveform are in phase?

A. P and R
B. R and T
C. P and TCorrect
D. Q and S

Explanation

Points that are the same vertical distance from the main line and moving in the same direction are in phase. P and T both lie on the main line moving in the same direction, so they are in phase.

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