Let P be a point on the parabola, and N be the foot of the perpendicular drawn from P on the axis of the parabola. A line is now drawn through mid-point M of PN, parallel to its axis which meets the parabola at Q. If the y-intercept of the NQ is , then:
Option: 1 PN=4
Option: 2
Option: 3
Option: 4 PN=3
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