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Which cone is intersected to produce the conic sections?
ADouble narrowed
BDouble napped
CDouble notched
DDouble numbered
Answer & Solution
Correct answer: B. Double napped
1. The cone extends on both sides of its vertex.
2. That two part shape is essential for the hyperbola.
3. Conics can be obtained as intersections of a plane with a double napped right circular cone.
4. So the answer is double napped.
_Source: NCERT Class XI Mathematics, Ch 10 'Conic Sections'_
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