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The angles of elevation of the tops of t...

The angles of elevation of the tops of two vertical towers as seen from the middle point of the line joining the foot of the towers are `60^@,30^@` respectively. The ratio of the heights of the towers is

A

`2:1`

B

`sqrt(3):1`

C

`3:2`

D

`3:1`

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The correct Answer is:
D
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MCGROW HILL PUBLICATION-HEIGHTS AND DISTANCES -MULTIPLE CHOICE QUESTIONS
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  2. A man on the top of a tower, standing on the seashore, finds that a...

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  3. A tower subtends an angle alpha at a point A in the plane of its base ...

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  4. A flag staff of 5m high stands on a building of 25m high. At an obse...

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  5. An aeroplane flying at a height 300 metre above the ground passes vert...

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  6. At a point on level ground, the angle of elevation of a vertical to...

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  7. The straight roads intersect at an angle of 60°. A bus on one road is ...

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  8. A flagstaff 10 m high stands at the centre of a equilateral triangle, ...

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  9. A tree is broken by wind, its upper part touches the ground at a point...

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  10. From the top of a light house, the angles of depression of two station...

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  11. A flag staff on the top of the tower 80 mt of height subtends an angle...

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  12. An aeroplane flying horizontally 900 m above the ground is observed at...

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  13. From the top of the house 18m high, if the angle of elevation of the t...

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  14. If the angle of elevation of an object from a point 100 m above a lake...

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  15. A tower subtends an angle alpha at a point A in the plane of its base ...

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  16. If the angles of elevation of the top of a tower from two points at d...

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  17. A boat is rowed away from a cliff 150 m high. At the top of the cliff,...

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  18. From the top of a church spire 96 m high, the angle of depression of t...

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  19. A flagstaff of height 1/5 of the height of a tower is mounted on the t...

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  20. The angles of elevation of the tops of two vertical towers as seen fro...

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