Q195. If the line px + qy + r = 0 touches the parabola y2 = 4ax, then which of the following conditions is true?Mathematics — Conic Sections — Question 195 of 272A. aq2 = prB. aq2 = 2prC. 4aq2 = prD. 2aq2 = prPractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →