Home
Class 12
MATHS
AB is a vertical pole and C is its mid p...

AB is a vertical pole and C is its mid point. The end A is on the level ground and P is any point on the level ground other than A the portion CB substends an angle `beta` at P. If AP:AB=2:1, then `beta`=

A

`tan^(-1)4/9`

B

`tan^(-1)1/9`

C

`tan^(-1)5/9`

D

`tan^(-1)2/9`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • HEIGHTS AND DISTANCES

    OBJECTIVE RD SHARMA|Exercise Exercise|45 Videos

  • EXPONENTIAL AND LOGARITHMIC SERIES

    OBJECTIVE RD SHARMA|Exercise Chapter Test|20 Videos

  • INCREASING AND DECREASING FUNCTIONS

    OBJECTIVE RD SHARMA|Exercise Chapter Test|20 Videos

Similar Questions

Explore conceptually related problems

AB is a vertical pole. The end A is on the level ground .C is the middle point of AB. P is a point on the level ground . The portion BC subtends an angles beta at P. If AP = nAB, then tan beta =

AB is a vertical pole resting at the end A on the level ground. P is a point on the level ground such that AP = 3AB and C Is the midpoint of AB. If AC and CB subtend angles alpha and beta , respectively, at P, then the value of tan beta is

AB is vertical tower.The point A is on the ground and C is the middle point of AB.The part CB subtend an angle alpha at a point P on the ground.If AP=nAB, then tan alpha=

If C is the middle point of AB and P is any point outside AB, then

If C is the mid-point of AB and P is any point outside AB, then

Let a vertical tower AB have its end A on the level ground. Let C be the mid-point of AB and P be a point on the ground such that AP = 2AB. If sqrtBPC = beta , then tan beta is equal to

OBJECTIVE RD SHARMA-HEIGHTS AND DISTANCES-Exercise
  1. If the elevation of the sun is 30^@ , then the length of the shadow c...

    Text Solution

    |

  2. A ladder rests against a vertical wall at angle alpha to the horizonta...

    Text Solution

    |

  3. From the top of a cliff 300 metres high, the top of a tower was obser...

    Text Solution

    |

  4. The angles of elevation of the top of a tower at the top and the foot ...

    Text Solution

    |

  5. A person standing on the bank of a river finds that the angle of elev...

    Text Solution

    |

  6. A tower subtends an angle of 30^@ at a point on the same level as the ...

    Text Solution

    |

  7. AB is a vertical pole and C is its mid point. The end A is on the leve...

    Text Solution

    |

  8. The angle of depression of a point situated at a distance of 70 metres...

    Text Solution

    |

  9. The angle of elevation of the top of a vertical tower from two points ...

    Text Solution

    |

  10. An aeroplane flying horizontally , 1km above the ground , is observed...

    Text Solution

    |

  11. At the foot of the mountain the elevation of its summit is 45^@, after...

    Text Solution

    |

  12. At a distance 12 metres from the foot A of a tower AB of height 5 met...

    Text Solution

    |

  13. A tower 50 m high , stands on top of a mount, from a point on the grou...

    Text Solution

    |

  14. A person on a ship sailing north sees two lighthouses which are 6 km a...

    Text Solution

    |

  15. An observer finds that the elevation of the top of a tower is 22.5^@ a...

    Text Solution

    |

  16. A vertical lamp-post, 6m high, stands at a distance of 2 m from a wall...

    Text Solution

    |

  17. The angle of elevation of the top of a vertical pole when observed ...

    Text Solution

    |

  18. The upper (3/4)^(th) portion of a vertical pole subtends an angle "tan...

    Text Solution

    |

  19. A person standing on the bank of a river observes that the angle of el...

    Text Solution

    |

  20. A tower subtends angles alpha,2alpha,3alpha respectively, at point A ,...

    Text Solution

    |