Let the focus S of the parabola y^(2)=8x...

Let the focus S of the parabola `y^(2)=8x` lie on the focal chord PQ of the same parabola. If the length QS = 3 units, then the ratio of length PQ to the length of the laturs rectum of the parabola is

A

`(2)/(sqrt5)`

B

`(4)/(5)`

C

`(5)/(4)`

D

`(9)/(8)`

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The correct Answer is:

D

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