Home › CBSE Class 11 (Commerce) › Mathematics › Conic Sections › A plane through the vertex contains a generator …
A plane through the vertex contains a generator of the cone. The section is
AAn ellipse
BA straight line
CA pair of lines
DA single point
Answer & Solution
Correct answer: B. A straight line
When beta equals alpha at the vertex, the plane holds one generator, so the section is a single straight line, a degenerate parabola.
Related questions