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Height and Distance Questions Answers Online Quiz Test

  • 1. Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse is observed from the ships are 30 degree and 45 degree respectively. If the lighthouse is 100 m high, the distance between the two ships is:

    1. 276 metre
    2. 273 metre
    3. 270 metre
    4. 263 metre
  • 2. The angle of elevation of the sun, when the length of the shadow of a tree is \begin{aligned}\sqrt{3}\end{aligned} times the height of tree, is :

    1. 30 degree
    2. 45 degree
    3. 60 degree
    4. 9 degree
  • 3. From a point C on a level ground, the angle of elevation of the top of a tower is 30 degree. If the tower is 100 meter high, find the distance from point C to the foot of the tower.

    1. 170 meter
    2. 172 meter
    3. 173 meter
    4. 167 meter
  • 4. A man standing at a point C is watching the top of a tower, which makes an angle of elevation of 30 degree. The man walks some distance towards the tower to watch its top and the angle of elevation become 60 degree. What is the distance between the base of the tower and point C.

    1. \begin{aligned} 4\sqrt{3} meter \end{aligned}
    2. \begin{aligned} 2\sqrt{3} meter \end{aligned}
    3. \begin{aligned} \sqrt{3} meter \end{aligned}
    4. Data is inadequate
  • 5. A man is watching form the top of the tower a boat speeding away from the tower. The boat makes the angle of depression of 45 degree with the man's eye when at a distance of 60 metres from the tower. After 5 seconds the angle of depression becomes 30 degree. What is the approximate speed of the boat, assuming that it is running in still water ?

    1. 22 Km/Hr
    2. 28 Km/Hr
    3. 32 Km/Hr
    4. 36 Km/Hr
  • 6. The Top of a 15 metre high tower makes an angle of elevation of 60 degree with the bottom of an electric pole and angle of elevation of 30 degree with the top of pole. Find the height of the electric pole.

    1. 7 metre
    2. 8 metre
    3. 9 metre
    4. 10 metre
  • 7. A toy leaves the earth at a point A and rises vertically at uniform speed. After two minutes of vertical rise boy finds the angular elevation of the balloon as 60°.
    If the point at which boy is standing is 150 m away from point A, what is the speed of the toy ?

    1. .98 meter/second
    2. 1.08 meter/second
    3. 1.16 meter/second
    4. 2.08 meter/second
    5. 2.16 meter/second
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