1.The normal chord of a parabola y2=4axy^2 = 4axy2=4ax at the point whose ordinate is equal to the abscissa, then angle subtended by normal chord at the focus is:a.π4\frac{\pi}{4}4πb.tan−12\tan^{-1}\sqrt{2}tan−12c.tan−12\tan^{-1}2tan−12d.π2\frac{\pi}{2}2πLogin to continueOnly logged in users canattempt or see the solution.