Find the length of normal chord which subtends an angle of `90^0` at the vertex of the parabola `y^2=4xdot`

Find the length of the normal chord which subtends an angle of 90^@ at the vertex of the parabola y^2=4x .

Find the length of the normal chord which subtends an angle of 90^(@) at the vertex of the parabola y^(2)=4x

The length of the normal chord which subtends an angle of 90^(@) at the vertex of the parabola y^(2)=4x is

The length of normal chord of parabola y^(2)=4x , which subtends an angle of 90^(@) at the vertex is :

If the chord y=mx+c subtends a right angle at the vertex of the parabola y^(2)=4ax thenthe value of c is

If a normal subtends a right angle at the vertex of a parabola y^(2)=4ax then its length is

If a normal subtends a right angle at the vertex of a parabola y^(2)=4ax then its length is

Find the locus of the middle points of the chords of the parabola y^2=4a x which subtend a right angle at the vertex of the parabola.