Q70.If one of the diameters of the circle, given by the equation, x2 + y2 −4x + 6y −12 = 0, is a chord of a circle S , whose centre is at (−3, 2), then the radius of S is (1) 5 (2) 10 (3) 5√2 (4) 5√3
What This Question Tests
This question tests the understanding of circle properties, specifically relating a diameter of one circle to a chord of another circle, and then using distance formulas to find the radius of the second circle.
Concepts Tested
Formulas Used
(x-h)^2 + (y-k)^2 = r^2
Distance formula
📚 NCERT Sections This Tests
2.4 — A Spherical Conductor Of Radius 12 Cm Has A Charge Of 1.6 × 10–7C
Physics Class 11 · Chapter 2
2.4 A spherical conductor of radius 12 cm has a charge of 1.6 × 10–7C distributed uniformly on its surface. What is the electric field (a) inside the sphere (b) just outside the sphere (c) at a point 18 cm from the centre of the sphere?
2.2 — A Regular Hexagon Of Side 10 Cm Has A Charge 5 Mc At Each Of Its
Physics Class 11 · Chapter 2
2.2 A regular hexagon of side 10 cm has a charge 5 mC at each of its vertices. Calculate the potential at the centre of the hexagon.
5.12 — Write All The Geometrical Isomers Of [Pt(Nh3)(Br)(Cl)(Py)] And How Many Of
Chemistry Class 11 · Chapter 5
5.12 Write all the geometrical isomers of [Pt(NH3)(Br)(Cl)(py)] and how many of these will exhibit optical isomers?
📋 Question Details
- Chapter
- Circles
- Topic
- Circle properties and chords
- Year
- 2016
- Shift
- 03 Apr
- Q Number
- Q70
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 11: Conic Sections
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