Home
Class 11
MATHS
The shadow of a tower standing on a leve...

The shadow of a tower standing on a level plane is found to be 50 mt longer when the suns altitude is `30^(@) ` then that when it ` 45^(@)` then the height of the tower is

A

` 25( sqrt3+ 1) `

B

` 25( sqrt3-1) `

C

` 20 (sqrt3+1) `

D

` 20 ( sqrt3-1) `

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise EXERCISE - II|148 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE EXERCISE|132 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise ADDITIONAL EXERCISE|12 Videos

  • PLANES

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|30 Videos

  • PROPERTIES OF VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISES|55 Videos

Similar Questions

Explore conceptually related problems

The shadow of the tower standing on a level ground is found to be 60 metres longer when the sun's altitude is 30^@ then when it is 45^@ . The height of the tower is

The shadow of a tower standing on a level ground is found to be 40 m longer when sun's altitude is 30^@ then when it was 60^@ . Find the height of the tower.

A tower is 50m high. Its shadow is x m shorter when the sun's altitude is 45^(@) then when it is 30^(@) , then x=……….m.

The angle of elevation of the top of a hill from the foot of a tower is 60^@ and the angle of elevation of the top of the tower from the foot of the hill is 30^@ . If the tower is 50 m high. Find the height of the hill.

A flag staff of length 10 mt stands on a tower if from a point on the ground , the angle of elevation of the foot and the top of the flagstaff are 45 ^(@) and 75 ^(@) then height of the tower is

A man observes top of a tower at an angle of elevation of 30^@ . When he walked 40 m towards the tower, the angle of elevation is changed to 60^@ Find the height of the tower and distance from the first observation point to the tower.

The angle of elevation of the toop point P of the vertical tower PQ of height h from a point A 45^(@) and from a point B is 60 ^(@) , where B is a point at a distance 30 meters from the point A measured along the line AB which makes an angle 30^(@) with AQ . Then the height of the tower is.

A TV tower stands vertically on the side of a road. From a point on the other side directly opposite to the tower, the angle of elevation of the top of tower is 60^(@) . From another point 10 m away from this point, on the line joining this point to the foot of the tower, the angle of elevation of the top of the tower is 30^(@) . Find the height of the tower and the width of the road.

The angle of elevation of the top of the top of a vertical tower from a point A, due east of it is 45^(@) . The angle of elevation of the top of the same tower from a point B, due south of A is 30^(@) . If the distance between A and B is 54sqrt2m , then the height of the tower (in meters), is

The height of a tower is 10m. The length of its shadow when sun's altitude is 45^(@) is……….m.

AAKASH SERIES-PROPERTIES OF TRIANGLES-EXERCISE - 1
  1. A tree is broken by wind, its upper part touches the ground at a point...

    Text Solution

    |

  2. The angle of elevation of an object from a point P on the level ground...

    Text Solution

    |

  3. The shadow of the tower standing on a level ground is found to be 60 m...

    Text Solution

    |

  4. A person standing on the bank of a river observes that the angle subte...

    Text Solution

    |

  5. The angle of elevation of the top of an unfinished tower from a point ...

    Text Solution

    |

  6. If a flag staff of 6 mt high placed on the top of a tower throws a sha...

    Text Solution

    |

  7. A sphere of radius 'a' subtends an angle 60^(@) at a point P. Then the...

    Text Solution

    |

  8. Two tress A and B are on the same side of a river . From a point C in ...

    Text Solution

    |

  9. Two ships leave a port at the same time . One goes 24km per hour in th...

    Text Solution

    |

  10. If tan "" (A ) /(2) = (5)/(6) , tan "" ( B)/(2) = ( 20 )/( 37) " t...

    Text Solution

    |

  11. In a triangle ABC if (cos A)/a=(cos B)/b= (cos C)/c, then Delta ABC is

    Text Solution

    |

  12. In Delta ABC, if sin C=(sin A)/(2 cos B) then the triangle is

    Text Solution

    |

  13. The angle of elevation of the sun when length of the shadow of a pole ...

    Text Solution

    |

  14. The elevation of an object on a hill is observed from a certain point...

    Text Solution

    |

  15. A flag staff of length 10 mt stands on a tower if from a point on the ...

    Text Solution

    |

  16. The shadow of a tower standing on a level plane is found to be 50 mt l...

    Text Solution

    |

  17. A tree stands vertically on the slant of the hills From a point A on t...

    Text Solution

    |

  18. If Delta ABC is such that angle A = 90 ^(@) , angle B ne angle C " ...

    Text Solution

    |

  19. In Delta ABC, if 8R^(2) = a^(2) + b^(2) + c^(2), then the triangle is ...

    Text Solution

    |

  20. In Delta ABC, if 2R + r = r(2) then angleB =

    Text Solution

    |