Home
Class 12
MATHS
The length of the latusrectum of the par...

The length of the latusrectum of the parabola whose focus is `(mu^(2)/(2g)sin2alpha,-(mu^(2))/(2g)cos2alpha)`

A

`(mu^(2))/(g)"cos"^(2)alpha`

B

`(mu^(2))/(g) "cos"2alpha`

C

`(2mu^(2))/(g) "cos"2alpha`

D

`(2mu^(2))/(g) "cos"^(2)alpha`

Text Solution

Verified by Experts

The correct Answer is:
D
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

The length of latus rectum of the parabola whose focus is ((u^(2))/(2g) Sin 2 alpha, (u^(2))/(2g)) and directrix is y= (u^(2))/(2g) is

sin 2 alpha - cos 2 alpha tan alpha =

Equation of parabola whose vertex is (2, 5) and focus (2, 2) is

cos^(4)alpha+sin^(4)alpha-6sin^(2)alpha cos^(2)alpha=

If p and q are the lengths of the perpendiculars from the origin to the straight lines x sec alpha+y cosec alpha=a and x cos alpha-y sin alpha=a cos 2alpha, prove that 4p^(2)+q^(2)=a^(2)

If pi lt alpha lt 2pi then (1)/(Sin alpha - sqrt(cot^(2)alpha -cos^(2) alpha))=

If cos alpha =(3)/(5) and cos beta =(5)/(13) and alpha, beta are acute angles, then prove that (a) sin ^(2)((alpha-beta)/(2))=(1)/(65) and (b) cos ^(2)((alpha+beta)/(2))=(16)/(65)

cos^(2)(alpha+beta)+cos^(2)(alpha-beta)-cos2alpha cos2beta=

DIPTI PUBLICATION ( AP EAMET)-PARABOLA-EXERCISE 1 A
  1. The length of the latus rectum of the parabola 3x^(2)-9x+5y-2=0 is

    Text Solution

    |

  2. The point (3,4) is the focus and 2x-3y+5=0 is the directrix of a parab...

    Text Solution

    |

  3. The length of the latusrectum of the parabola whose focus is (mu^(2)/(...

    Text Solution

    |

  4. Latus rectum of the parabola whose axis is parallel to the y-axis and ...

    Text Solution

    |

  5. The point (3,4) is the focus and 2x-3y+5=0 is the directrix of a parab...

    Text Solution

    |

  6. If the parabola y^(2)=4ax passes through (-3,2) then the length of its...

    Text Solution

    |

  7. If the straight line y=mx+c is parallel to the axis of the parabola y^...

    Text Solution

    |

  8. The ends of the latus rectum of the parabola (x-2)^(2)=-6(y+1) are

    Text Solution

    |

  9. The equation of the latus rectum of the parabola (y-2)^(2)=-4(x+2) is

    Text Solution

    |

  10. The equation of the directrix to the parabola y^(2)-2x-6y-5=0 is

    Text Solution

    |

  11. The equation of the directrix of the parabola y^(2)+4y+4x+2=0 is

    Text Solution

    |

  12. The parabola (y+1)^(2)=a(x-2) passes through point (1,-2). The equaito...

    Text Solution

    |

  13. The equation of the directrix of the parabola y^(2)-4ay-2ax=0 is

    Text Solution

    |

  14. The equation of the latus rectum of the parabola x^(2)-12x-8y+52=0 is

    Text Solution

    |

  15. The equation of the directrix of the parabola 3x^(2)-9x+5y-2=0 is

    Text Solution

    |

  16. The equation of the directrix of the parabola whose vertex (3,2) and f...

    Text Solution

    |

  17. The equation of the axis of the parabola (y+3)^(2)=4 (x-2) is

    Text Solution

    |

  18. Axis of the parabola x^(2)-3y-6x+6=0 is

    Text Solution

    |

  19. The equation of the axis of the parabola 3x^(2)-9x+5y-2=0 is

    Text Solution

    |

  20. The parabola y=px^(2)+px+q is symmetrical about the line

    Text Solution

    |