An ellipse of which the circle is a special case is a curve that is:
AA straight line
BA closed curve
CAn open curve
DA broken curve
Answer & Solution
Correct answer: B. A closed curve
1. The path returns to its starting point each orbit.
2. It never runs off to infinity.
3. So the ellipse is a closed curve.
_Source: NCERT Class 11 Physics Part I, Chapter 8, Gravitation._
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