Home
Class 12
MATHS
A flag staff of 5m high stands on a buil...

A flag staff of 5m high stands on a building of 25m high. At an observer at a height of 30 m. The flag staff and the building subtend equal angles. The distance of the observer from the top of the flag staff is

A

`(5sqrt(3))/2`m

B

`5sqrt(3/2)m`

C

`5sqrt(2/3)m`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • INVERSE TRIGONOMETRIC FUNCTIONS

    NTA MOCK TESTS|Exercise SINGLE CHOICE |30 Videos

  • JEE MOCK TEST 10

    NTA MOCK TESTS|Exercise MATH|25 Videos

Similar Questions

Explore conceptually related problems

A flag - staff of 10 meters high stands on a building of 50 meters height.For an observer at a height of 60 meters,the flag - staff and the building subtend equal angles. The distance of the observer from the top of the flag - staff is

A pole of 50 meter high stands on a building 250m high.To an observer at a height of 300m, thebuilding and the pole subtend equal angles.The distance of the observer from the top of The pole

5 m high pole stands on a building of height 25 m. The pole and the building subtend equal angles at an antenna placed at a height of 30 m. The distanceo f the antenna from the top of the pole is

A tower of x metres height has flag staff at its top. The tower and the flag staff subtend equal angles at a point distant y metres from the foot of the tower. Then, the length of the flag staff in metres is

A flag staff of height 10 metres is placed on the top of a tower of height 30 metres.At the top of a tower of height 40 metres,the flag staff and the tower subtend equal angles then the distance between the two towers in metres is

NTA MOCK TESTS-JEE MOCK TEST 1-MATHEMATICS
  1. The domain of definition of the function y=3e^(sqrt(x^(2)-1))log(x-1) ...

    Text Solution

    |

  2. The value of int(-1)^(1)(x-[x])dx, (where [.] denotes greatest integer...

    Text Solution

    |

  3. A flag staff of 5m high stands on a building of 25m high. At an obser...

    Text Solution

    |

  4. If R = {(x, y): x, y in z, x^2 + y^2 le 4} is a relation defined on t...

    Text Solution

    |

  5. What will be the remainder when 5^97 is divided by 52

    Text Solution

    |

  6. If y=4x-5 is a tangent to the curve y^(2)=px^(3) +q at (2, 3), then

    Text Solution

    |

  7. The number of discontinuities of the greatest integer function f(x)=[...

    Text Solution

    |

  8. The number of ways of dividing 15 men and 15 women into 15 couples eac...

    Text Solution

    |

  9. If the general solution of the differential equation y'=y/x+phi(x/y), ...

    Text Solution

    |

  10. If "sin"^(-1)(1)/(3)+"sin"^(-1)(2)/(3)=sin^(-1)x, then the value of x...

    Text Solution

    |

  11. If x!= y, then for every natural number n, x^n - y^n is divisible by

    Text Solution

    |

  12. The area bounded by the curves y=(x-1)^(2),y=(x+1)^(2) " and " y=(1)/(...

    Text Solution

    |

  13. Number of roots of cos^2x+(sqrt(3)+1)/2sinx-(sqrt(3))/4-1=0 which lie ...

    Text Solution

    |

  14. Suppose that the side lengths of a triangles are three consecutive int...

    Text Solution

    |

  15. Let x = 33^n . The index n is given a positive integral value at rando...

    Text Solution

    |

  16. If y=log(10)x+log(x)10+log(x)x+log(10)10 then what is ((dy)/(dx))(x=10...

    Text Solution

    |

  17. If |z|ge3, then determine the least value of |z+(1)/(z)|.

    Text Solution

    |

  18. If a, b, c, d, e, f are in А.Р., then e-c is equal to

    Text Solution

    |

  19. int(log(x+1)-logx)/(x(x+1))dx is equal to :

    Text Solution

    |

  20. If f(X) is a polynomial satisfying f(x)f(1/x)=f(x)+f(1/x) and f(2)gt1,...

    Text Solution

    |