Home
Class 10
MATHS
A 1.8m tall girl stands at a distance of...

A 1.8m tall girl stands at a distance of 4.6m from a lamp post and casts a 5.4m long shadow on the ground. Then, the height of the lamp post is………..m

A

1.53

B

`(10)/(3)`

C

13.8

D

0.8

Text Solution

Verified by Experts

The correct Answer is:
A, C
Promotional Banner

Topper's Solved these Questions

  • SOME AAPLICATIONS OF TRIGONOMETRY

    KUMAR PRAKASHAN|Exercise Practice Thoroughly|7 Videos

  • REAL NUMBERS

    KUMAR PRAKASHAN|Exercise TEST YOUR SKILLS|26 Videos

  • STATISTICS

    KUMAR PRAKASHAN|Exercise Objective Questions (True or false)|5 Videos

Similar Questions

Explore conceptually related problems

A person 1.65m tall casts 1.8m shadow. At the same instance, a lamp post casts a shadow of 5.4 m. Find the height of the lamppost.

A ladder is placed againt a wall such that its foot remains at a distance of 2.5 m from the wa and its top reaches a window 6 m above the ground. Find the length of the ladder in cm.

The angle of elevation of a bird sitting on top of a tree as seen from the point at a distance of 20m from the base of the tree is 60^(@) . Then, the height of the tree is ……..m

The angle of elevation of the top of a tower at a distance 500m from the foot is 30^(@) . Then, the height of the tower is ………m.

A man 2m tall walks at a uniform speed of 4m/min away from a lamp post 6m high. Find the rate at which the length of his shadow decreases.

A lamp post is situated at the middle point M of the side AC of a triangular plot ABC with BC=7m, CA=8m and AB=9m . Lamp post subtends an angle 15^(@) at the point B. Determine the height of the lamp post.

A kite is flying at a height of 75m from the level ground, attached to a taut string inclined at 60^(@) to the horizontal. Then, the length of the string is …………m

A girl of height 90 cm is walking away from the base of a lamp post at a speed of 1.2 m/sec. If the lamp post is 3.6m above the ground, find the length of her shadow after 4 seconds.

A 1.5m tall boy is standing at some distance from a 30m tall building. The angle of elevation from his eyes to the top of the building increase from 30^(@) " to " 60^(@) as he walks towards the building. Find the distance he walked towards the building.

The angles of elevation of the top of a tower from two points at a distance of 4m and 9m from the base of the tower and in the same straight line with it are complementary. Prove that the height of the tower is 6m.

KUMAR PRAKASHAN-SOME AAPLICATIONS OF TRIGONOMETRY-Objective Questions
  1. The height of a tower is 200m. When the altitude of the Sun is 30^(@),...

    Text Solution

    |

  2. The angle of elevation of the top of a 15m high tower from a point 15m...

    Text Solution

    |

  3. The angle of depression of a boat from a 50m high bridge is 30^(@). Th...

    Text Solution

    |

  4. The angle of elevation of a bird sitting on top of a tree as seen from...

    Text Solution

    |

  5. The length of the shadow of a 10m high tree is ……..m when the angle of...

    Text Solution

    |

  6. The top of two poles of height 16m and 10m are connected by a wire. If...

    Text Solution

    |

  7. The angle of elevation of the top of a tower from a point P on the gro...

    Text Solution

    |

  8. A 1.8m tall girl stands at a distance of 4.6m from a lamp post and cas...

    Text Solution

    |

  9. The angle of elevation of the top of a tower at a distance 500m from t...

    Text Solution

    |

  10. A tower stands on a horizontal plane. The shadow of the tower when the...

    Text Solution

    |

  11. The angle of elevation of the top of a tower from a point 30m away fro...

    Text Solution

    |

  12. The height of a tower is 10m. What is the length of its shadow when th...

    Text Solution

    |

  13. An observer, 1.5m tall, is 28.5m away from a 30m high tower. Determine...

    Text Solution

    |

  14. An observer 1.7m tall, is 20 sqrt3m away from a tower. The angle of el...

    Text Solution

    |

  15. The angle of elevation of the top of an adjustable pole from a point o...

    Text Solution

    |

  16. The two towers of heights x and y, standing on level ground, subtend a...

    Text Solution

    |

  17. When the Sun's altitude is 45^(@), the height of a tower and the lengt...

    Text Solution

    |

  18. In a right triangle, if the measure of an acute angle is 30^(@), the s...

    Text Solution

    |

  19. A 10m long ladder leaning on a wall reaches the height of 5m on the wa...

    Text Solution

    |

  20. Walking 20m on a slope of inclination 30^(@) with the level ground, on...

    Text Solution

    |