If the chord joining the points and on the parabola subtends a right angle at the vertex of the parabola, then is equal to
- (A)288✓ Correct
- (B)280
- (C)284
- (D)292
Answer: (A)
Solution
Take points on as and . A right angle at the vertex means the slopes multiply to : , so . Then and , giving .
JEE Main · 2026 · 22 Jan 2026 · Shift 1 · Single correct option