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If the normals to the parabola y^2=4a x ...

If the normals to the parabola `y^2=4a x` at the ends of the latus rectum meet the parabola at `Qa n dQ^(prime),` then `QQ '` is `10 a` (b) `4a` (c) `20 c` (d) `12 a`

A

`x=2a`

B

`x=3a`

C

`x=6a`

D

`x=9a`

Text Solution

Verified by Experts

The correct Answer is:
D
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