The locus of the mid point of the line segment joining the point and the points on the ellipse is an ellipse with eccentricity:
- (A)
- (B)
- (C)✓ Correct
- (D)
Answer: (C)
Solution
The ellipse is , so a general point on it is .
The midpoint of and is:
So and .
Squaring and adding:
This is an ellipse with and .
Eccentricity:
The midpoint of and is:
So and .
Squaring and adding:
This is an ellipse with and .
Eccentricity:
JEE Main · 2022 · 26 Jun 2022 · Shift 2 · Single correct option