The diagram above illustrates a waveform. Which of the point on the waveform are in phase? by Sunday | Jan 26 | Physics WAEC | 0 comments A. P and R B. R and T C. P and T D. Q and S Correct Answer: Option D D. Q and S Users Also Read These:The diagram above illustrates a uniform metre rule…The diagram above illustrates a block and tackle…The diagram below illustrates a variation of the…A sound note of frequency 250 Hz and wavelength 1.3m…The diagram above illustrates a simple barometer.…