Class 11

09. Circles question bank (Maths)

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Q1.

A point \(P\) moves in such a way that the ratio of its distances from two coplanar points is always a fixed number (\(\ne 1\)). Then its locus is  

(A)
Straight line
(B)
Circle
(C)
Parabola
(D)
A pair of straight lines
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Q2.

The equation of a circle with origin as centre passing through the vertices of an equilateral triangle whose median is of length \(3a\) is  

(A)
\(x^2 + y^2 = 9a^2\)
(B)
\(x^2 + y^2 = 16a^2\)
(C)
\(x^2 + y^2 = a^2\)
(D)
None of these
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