Let the image of parabola , in the line be . Then is equal to
- (A)12
- (B)4
- (C)6✓ Correct
- (D)8
Answer: (C)
Solution
Reflection in the line sends a point to . A point on therefore maps to . Setting gives and , i.e. . Thus , so .
JEE Main · 2026 · 24 Jan 2026 · Shift 2 · Single correct option