The length of the chord of the ellipse , whose mid-point is , is:
- (A)✓ Correct
- (B)
- (C)
- (D)
Answer: (A)
Solution
For an ellipse, the chord with a given midpoint satisfies :
With :
Substitute into :
So , , and
Since , , so the chord length is

With :
Substitute into :
So , , and
Since , , so the chord length is

JEE Main · 2025 · 23 Jan 2025 · Shift 2 · Single correct option