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The two circles x^(2)+y^(2)=ax, x^(2)+y^...

The two circles `x^(2)+y^(2)=ax, x^(2)+y^(2)=c^(2) (c gt 0)` touch each other if

A

a=2c

B

|a|=2c

C

2|a|=c

D

|a|=c

Text Solution

Verified by Experts

The correct Answer is:
D
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DIPTI PUBLICATION ( AP EAMET)-CIRCLE-Exercise 1D(Angle Between Circles)
  1. The condition that the circles x^(2)+y^(2)+2ax+c=0, x^(2)+y^(2)+2by+c=...

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  2. The condition that the circles x^(2)+y^(2)+2ax+2by+c=0, x^(2)+y^(2)+2b...

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  3. The two circles x^(2)+y^(2)=ax, x^(2)+y^(2)=c^(2) (c gt 0) touch each ...

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  4. The equation of the circle with centre (-1,1) and touch the circle x^(...

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  5. The equation of the circle radius is 5 and which touches the circle x^...

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  6. The equation to the circle whose radius is 3 and which touches interna...

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  7. The equation of the circle whose radius is 3 and which touches the cir...

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  8. The centre of the circle passing through the points (0,0), (1,0) and t...

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  9. The locus of the centre of a circle which touches the line x cos alpha...

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  10. The locus of the centre of a circle which touches externally the circl...

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  11. The locus of the centre of a circle which touches externally the circl...

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  12. The locus of the centre of a circle which touches externally the circl...

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  13. The centres of those circles which touch the circle, x^(2)+y^(2)-8x-8y...

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  14. A circle touches the x-axis and also touches the circle with centre at...

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  15. Let C be the circle with centr at (1,1) and radius =1. If T is the cir...

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  16. The circels whose equations are x^(2)+y^(2)+10x-2y+22=0 and x^(2)+y^(2...

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  17. The number of common tangent to the circles x^(2)+y^(2)+2x+8y-23=0, x^...

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  18. The number of common tangents to the circles x^(2)+y^(2)=4, x^(2)+y^(2...

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  19. The number of common tangents to the circles x^(2)+y^(2)=0, x^(2)+y^(2...

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  20. The number of common tangents that can be drawn to the circles x^(2)+y...

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