Home
Class 10
MATHS
If a man standing on a plat form 3 m abo...

If a man standing on a plat form 3 m above the surface of a lake observes a cloud and its reflection in the lake at this time the height of reflection of cloud in lake is (h+3) because in lake platform height is also added to reflection of cloud.
So, angle of depression is different in the lake from the angle of elevation of the cloud is equal to the angle of depressin of its reflection.

Promotional Banner

Topper's Solved these Questions

  • SOME APPLICATIONS OF TRIGONOMETRY

    CBSE COMPLEMENTARY MATERIAL|Exercise LONG ANSWER TYPE QUESTIONS|19 Videos

  • SOME APPLICATIONS OF TRIGONOMETRY

    CBSE COMPLEMENTARY MATERIAL|Exercise PRACTICE-TEST (SECTION-A)|4 Videos

  • SOME APPLICATIONS OF TRIGONOMETRY

    CBSE COMPLEMENTARY MATERIAL|Exercise PRACTICE-TEST (SECTION-D)|1 Videos

  • REAL NUMBERS

    CBSE COMPLEMENTARY MATERIAL|Exercise LONG ANSWER TYPE QUESTION|15 Videos

  • STATISTICS

    CBSE COMPLEMENTARY MATERIAL|Exercise Practice -Test|5 Videos

Similar Questions

Explore conceptually related problems

If a man standing on a platform 3 m above the surface of a lake observes a cloud and its reflection in the lake, then the angle of elevation of the cloud is equal to the angle of depression of its reflection.

Lakes

The angle of elevation of a cloud from a point h metre above a lake is theta The angle depression of its reflection in the lake is 45^(@) The height of the cloud is

If the angle of elevation of a cloud from a point 200m above a lake is 30^(@) and the angle of depression of its reflection in the lake is 60^(@) .Then the height of the cloud above the lake is :

The angle of elevation of a cloud from a point h mt. above is theta^@ and the angle of depression of its reflection in the lake is phi . Then, the height is

The angle of elevation of a cloud from a point 250 m above a lake is 15^(@) and angle of depression of its reflection in lake is 45^(@) . The height of the cloud is

If the angle of elevation of a cloud from a foot 4 meters above a lake is beta and the angle of depression of its reflection in the lake is alpha then the height is

The angle of elevation of a cloud from a height h above the level of water in a lake is alpha and the angle of depressionof its image in the lake is beta . Find the height of the cloud above the surface of the lake:

If the angle of elevation of a cloud from a point h metres above a lake is alpha and the angle of depression of its reflection in the take is beta prove that the height of the cloud is h(tan beta+tan alpha)quad tan beta-tan alpha

CBSE COMPLEMENTARY MATERIAL-SOME APPLICATIONS OF TRIGONOMETRY-SHORT ANSWER TYPE QUESTIONS
  1. In the figure, find the value of BC.

    Text Solution

    |

  2. In the figure, two persons are standing at the opposite direction P & ...

    Text Solution

    |

  3. In the figure, find the value of AB.

    Text Solution

    |

  4. In the figure, find the value of CF.

    Text Solution

    |

  5. If the horizontal distance of the boat from the bridge is 25 m and the...

    Text Solution

    |

  6. State True/False. If the length of the shadow of a tower is increasi...

    Text Solution

    |

  7. If a man standing on a plat form 3 m above the surface of a lake obser...

    Text Solution

    |

  8. The angle of elevation of the top of a tower is 30^(@). If the height ...

    Text Solution

    |

  9. From the top of a hill, the angles of depression of two consecutive ...

    Text Solution

    |

  10. The string of a kite is 150 m long and it makes an angle 60^(@) with t...

    Text Solution

    |

  11. The shadow of a vertical tower on level ground increases by 10 m when ...

    Text Solution

    |

  12. An aeroplane at an altitude of 200 m observes angles of depression of ...

    Text Solution

    |

  13. The angle of elevation of a tower at a point is 45^(@). After going 40...

    Text Solution

    |

  14. The upper part of a tree broken over by the wind makes an angle of 30^...

    Text Solution

    |

  15. A vertical flagstaff stands on a horizontal plane. From a point 100 m ...

    Text Solution

    |

  16. The length of a string between kite and a point on the ground is 90 m....

    Text Solution

    |

  17. An aeroplane, when 3000 m high, passes vertically above anthoer aeropl...

    Text Solution

    |

  18. A 7 m long flagstaff is fixed on the top of a tower on the horizontal...

    Text Solution

    |

  19. From the top of a 7 m high building, the angle of elevation of the top...

    Text Solution

    |

  20. Anand is watching a circus artist climbing a 20m long rope which is ti...

    Text Solution

    |