The diagram above illustrates a waveform. Which of the point on the waveform are in phase?
Attached Figure / Diagram
A
P and R
B
R and T
C
P and T
D
Q and S
Verified Correct Answer: D.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #35732)