All electromagnetic waves in a vacuum have the same? by Sunday | Jan 25 | Physics WAEC | 0 comments A. wavelength B. frequency C. speed D. amplitude Correct Answer: Option C C. speed Users Also Read These:Which of the following electromagnetic waves has the…Water waves have a wavelength of 3.6cm and speed of…Which of the following statements-about…A boat is rocked by waves of speed 30ms‾¹ whose…In the periodic table all elements within the same…