Home
Class 11
MATHS
Equation of the circle , centred at the ...

Equation of the circle , centred at the origin , whose radius equals the distance between the lines x = -1 and x = 1 , is

A

`x^(2) + y^(2) =1`

B

`x^(2) + y^(2) = 2`

C

`x^(2) + y^(2) = 4`

D

`x^(2) + y^(2) = -4`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CIRCLE AND CONICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|289 Videos

  • BERNOULLI TRIALS AND BINOMIAL DISTRIBUTION

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|79 Videos

  • PROBABILITY

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|239 Videos

Similar Questions

Explore conceptually related problems

The equation of the circle with centre at (1, 3) and radius 3 is

Equation of the circle with centre on the X-axis , radius 4 , and passing through the origin , is

Equation of circle centred at origin , and touching the line 3x - 4y + 20 =0 is

Find the equation of the ellipse whose centre is at origin, the distance between foci is 2 and eccentricity is (1)/(sqrt(2)) .

Equation of the tangent to the circle at the point (1, -1) whose centre is the point of intersection of the straight lines x-y=1 and 2x+y-3=0, is

Find the equation of the circle with centre: (1, 1) and radius

Find the equation of a circle passing through the point ( 7,3) having radius 3 units and whose centre lies on the line y = x -1 .

MARVEL PUBLICATION-CIRCLE AND CONICS -MISCELLANEOUS MCQs
  1. The equation of the circel which touches X-axis at (3,0) and passes th...

    Text Solution

    |

  2. The equation ax^(2) + 2bxy + 2y^(2) + 2x - y + c = 0 represents a ...

    Text Solution

    |

  3. Equation of the circle , centred at the origin , whose radius equals t...

    Text Solution

    |

  4. If the equation of a circle which touches the line x = y at the origin...

    Text Solution

    |

  5. A circle x ^(2) + y^(2) + 2gx + 2fy + c=0 passing through(4,-2) is co...

    Text Solution

    |

  6. If the equation x^(2) + y^(2) + 2gx + 2fy + c = 0 represents a circl...

    Text Solution

    |

  7. Equation of the circle with centre (-4,3), and touching the circle ...

    Text Solution

    |

  8. Equation of the circle concentric with the circle x^(2) + y^(2) - ...

    Text Solution

    |

  9. Radius of the circle x^2 +y^2 + 2xcos theta + 2y sin theta-8=0, is

    Text Solution

    |

  10. If the equation (K(x+1)^(2))/(3) + ((y + 2 )^(2))/(4) =1 represents a ...

    Text Solution

    |

  11. The focus of the parabola 4y^(2) + 12x - 20y + 67 = 0 is

    Text Solution

    |

  12. The equation of the directirx of the parabola y^2+4y+4x+2=0 is

    Text Solution

    |

  13. If the focus of a parabola divides a focal chord in segments of lengt...

    Text Solution

    |

  14. If (4,0) is the vertex , and Y-axis the directrix of a parabola , then...

    Text Solution

    |

  15. Length of latus rectum of a parabola whose focus is (3,3) and directri...

    Text Solution

    |

  16. What is the equation of the parabola, whose vertex and focus are on th...

    Text Solution

    |

  17. If vertex of a parabola is origin and directrix is x + 7 = 0 , then it...

    Text Solution

    |

  18. Points on parabola y^(2) = 12x , whose focal distance is 4, are

    Text Solution

    |

  19. The focal distance of a point on the parabola y^2= 16x whose ordinat...

    Text Solution

    |

  20. A parabola passing through the point (-4,2) has its vertex at the ori...

    Text Solution

    |