is a normal chord of the parabola at being the vertex of the parabola. Through a line is drawn parallel to meeting the –axis in . Then line length of is 

a) 
Equal to the length of the latus rectum 
b) 
Equal to the focal distance of the point 
c) 
Equal to twice the focal distance of the point 
d) 
Equal to the distance of the point from the directrix 
is a normal chord of the parabola at being the vertex of the parabola. Through a line is drawn parallel to meeting the –axis in . Then line length of is 

a) 
Equal to the length of the latus rectum 
b) 
Equal to the focal distance of the point 
c) 
Equal to twice the focal distance of the point 
d) 
Equal to the distance of the point from the directrix 
(c)
Equation of the line through parallel to
Put
= twice the focal distance of