Question:
If a normal chord at a point "t" on the parabola $y^2 = 4ax$ subtends a right angle at the vertex, then t =
If a normal chord at a point "t" on the parabola $y^2 = 4ax$ subtends a right angle at the vertex, then t =
Updated On: Jul 5, 2022
- 1
- $\sqrt{2}$
- 2
- $\sqrt{3}$
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The Correct Option is B
Solution and Explanation
Normal chord at a point $'t'$ on the parabola $y^2 = 4 \,ax$ subtends a right angle at the vertex.
$\Rightarrow t^2 = 2$
$\Rightarrow t = \sqrt 2 $
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