Q39 / 90 · JEE Main 2023 (13 Apr Shift 1) · Mathematics
Let be a focal chord of the parabola of length making an acute angle with the positive axis. Let the ordinate of be positive and be the point on the line segment such that Then which of the following points does lie on the line passing through M and perpendicular to the line ?
Let be a focal chord of the parabola of length making an acute angle with the positive axis. Let the ordinate of be positive and be the point on the line segment such that Then which of the following points does lie on the line passing through M and perpendicular to the line ?
- A
- B
- C
- Correct answerD
Solution
We have been given the length of focal chord .
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Length of focal chord at
Where
Since ordinate of is
or
( as slope of is positive)
Required line
does not lie on line.
Hence this is the correct option.
Hence, the correct answer is option: 'D'.
