Home
Class 10
MATHS
When we lower our head to look at the ob...

When we lower our head to look at the object, the angle formed by the line of sight with horizontal is known as___

A

obtuse angle

B

Angle of depression

C

acute angle

D

angle of elevation

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • ANISHMALI UNTIED ACADEMY

    UNITED BOOK HOUSE|Exercise EXERCISE|53 Videos

  • BARANAGAR RAMAKRISHAN MISSION HIGH SCHOOL

    UNITED BOOK HOUSE|Exercise EXERCISE|55 Videos

Similar Questions

Explore conceptually related problems

When the line of sight is below the horizontal level, the angle so formed by the line of sight with the horizontal is called the angle of__________

The angle of depression of the point viewed is the angle formed by the line of sight with the horizontal when the point being viewed is above the horizonatal level.

When a point is observed, the angle formed by the line of sight with the horizontal level where the point being viewedis above the horizontal plane is known as____

When we see an object , the image formed on the retina is

Shib is flying kite having the length of thread 250 metres, when the thread makes an angle 60^(@) with the horizontal line and when the thread makes an angle of 45^(@) with the horizontal line. Calculate in each case what is the height of kite from the ground. Also find in which of the two cases will the kite be at a greater height from the other.

Form a point on the same plane along the horizontal line passes through the foot of a chimney, the angle of elevation of the top of the chimney is 30^(@) and the angle of elevation of the top of the chimney is 60^(@) at a point on the same straight line proceeding 50 metres nearer to the chimney. Calculate the height of the chimney.

UNITED BOOK HOUSE-Application of Trigonnometric Ratios : Heights of Distance-Exercise
  1. The shadow of a tower is 16 metre when the angle of elevation of the s...

    Text Solution

    |

  2. The angle of elevation of the sun, when the length of the shadow of a ...

    Text Solution

    |

  3. An observer of 1.6m tall is 20sqrt3 away from a tower. The angle of e...

    Text Solution

    |

  4. When a point is observed, the angle formed by the line of sight with t...

    Text Solution

    |

  5. When we lower our head to look at the object, the angle formed by the ...

    Text Solution

    |

  6. When the length of the shadow of a pillar is equal to its height, the ...

    Text Solution

    |

  7. The tops of two poles of height 10 m and 18 m are connected with wire....

    Text Solution

    |

  8. If the angle of elevation of the top of a tower from two points distan...

    Text Solution

    |

  9. If the angles of elevation of a tower from two points distance a and b...

    Text Solution

    |

  10. Two persons are a metres a part and the height of one is double that o...

    Text Solution

    |

  11. The angle of elevation of a cloud from a point 200 m above a lake is...

    Text Solution

    |

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

    Text Solution

    |

  13. From a light house the angles of depression of two ships on opposite s...

    Text Solution

    |

  14. The angle of elevation of the top of a tower standing on a horizontal ...

    Text Solution

    |

  15. It is found that on walking x metres towards a chimney in a horizontal...

    Text Solution

    |

  16. From the top of a cliff 25 m high the angle of elevation of a tower is...

    Text Solution

    |

  17. Find the angle of depression of a boat from the bridge at a horizontal...

    Text Solution

    |

  18. In the figure D is the midpoint of BC, angleCAB = alpha, angleDAB = be...

    Text Solution

    |

  19. The length of the shadow of a tower standing on level ground is found ...

    Text Solution

    |

  20. The angle of elevation of a cloud from a point 200 m above a lake is...

    Text Solution

    |