CircleMedium
Question
Through the vertex ′O′ of the parabola y2 = 4ax, variable chords OP and OQ are drawn at right angles. If the variable chord PQ intersects the axis of x at R, then distance OR :
Options
A.varies with different positions of P and Q
B.equals the semi latus rectum of the parabola
C.equals latus rectum of the parabola
D.equals double the latus rectum of the parabola
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