Home
Class 12
MATHS
If the chord y = mx +c subtends a right ...

If the chord y = mx +c subtends a right angle at the vertex of the parabola `y^(2)=4ax ` then the value of c is

A

`-4 am`

B

`4 am`

C

`-2 am`

D

`2 am`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PARABOLA

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 1B|50 Videos

  • PARABOLA

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS ) SET-1|4 Videos

  • PARABOLA

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS ) SET-4|4 Videos

  • MEASURES OF DISPERSION

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE-2 ( SET -4)|2 Videos

  • PARTIAL FRACTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 SET - 4|2 Videos

Similar Questions

Explore conceptually related problems

If a normal subtends a right angle at the vertex of a parabola y^(2)=4ax then its length is

If the normal subtends a right angle at the focus of the parabola y^(2)=4ax then its length is

If the normal subtends a right angle at the focus of the parabola y^(2)=8x then its length is

If the vertex of the parabola y = x^(2)-8x+c lies on x-axis then the value of c is

DIPTI PUBLICATION ( AP EAMET)-PARABOLA-EXERCISE 1 A
  1. The subnormal of the parabola y^(2)=4ax is equal to

    Text Solution

    |

  2. If a normal chord of a puint on the parabola y^(2) = 4ax, subtends a r...

    Text Solution

    |

  3. If the chord y = mx +c subtends a right angle at the vertex of the par...

    Text Solution

    |

  4. If P is a point on the parabola y^(2)=8x and A is the point (1,0) then...

    Text Solution

    |

  5. The locus of the point of intersection of two tangents to the parabola...

    Text Solution

    |

  6. The tangents at the points (at(1)^(2),2at(1)) , (at(2)^(2),2at(2)) on ...

    Text Solution

    |

  7. The tangent to y^(2)=ax makes an angle 45^(@) with x-axis . Then its ...

    Text Solution

    |

  8. The tangents at the points (at(1)^(2),2at(1)) , (at(2)^(2),2at(2)) on ...

    Text Solution

    |

  9. If P (at(1)^(2),2at(1)) and Q (at(2)^(2),2at(2)) are two variable poin...

    Text Solution

    |

  10. The length of the chord of contact of tangents drawn from (x(1),y(1)) ...

    Text Solution

    |

  11. The area of the triangle formed by the tangents and chord of contact f...

    Text Solution

    |

  12. If y(1),y(2) and y(3) are the ordinates of the vertices of a triangle ...

    Text Solution

    |

  13. The area of the triangle inscribed in the parabola y^(2)=4x the ordina...

    Text Solution

    |

  14. The tangents to the parabola y^(2)=4ax at P(t(1)) and Q (t(2)) inters...

    Text Solution

    |

  15. The orthocentre of the triangle formed by three tangents to the parabo...

    Text Solution

    |

  16. Prove that the orthocentre of the triangle formed by any three tangent...

    Text Solution

    |

  17. The feet of the perpendiculars drawn from the focus of a parabola to t...

    Text Solution

    |

  18. If the distances of two points P and Q on the parabola y^(2) = 4ax fro...

    Text Solution

    |

  19. If the distances of two points P and Q on the parabola y^(2) = 4ax fro...

    Text Solution

    |

  20. If the distances of two points P and Q on the parabola y^(2) = 4ax fro...

    Text Solution

    |