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A person in aballoon, who has ascended verticallly from flat land at the sea level, observes the angle of depression of a ship at anchor to be `30^(@)`. After descending verticallly 600 metres, he finds the angle of depression to be `15^(@)`. The horizontal distance of the ship from the foot of ascent in metres is

A

`300(3+sqrt(3))`

B

`300(3+2sqrt(3))`

C

`150(3+2sqrt(3))`

D

`150(3-2sqrt(3))`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-HEIGHTS AND DISTANCES-PRACTICE SHEET Exercise-I (Level-I) (Straight Objective Type Questions)
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  2. From the top of the hill h meers high the angles of depressinons of th...

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  3. The angle of elevation of a stationar cloud from a point 2500 m above ...

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  4. The angle of elevation of the top point P of a vertical tower PQ of he...

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  5. The angle of elevation of the top of the tower is 45^(@) on walking up...

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  6. A flag-staff stands on a tower which is on level ground. The total hei...

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  7. A flag staff stands vertically on a pillar. The height of the flag sta...

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  8. A tower stands at the top a hill whose height is three times the heigh...

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  9. The upper 3/4th portion of a vertical pole subtends an angle tan^(-1)(...

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  10. A verrical pole subtends an angle tan^(-1)"1/2 at a points P on the gr...

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  11. A vertical pole more than 100ft high consists of two portions the lowe...

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  12. A straight pole A subtend a right angle at a point B of another pole a...

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  13. A tower of x metres high, has a flagstaff at its top. The tower and th...

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  14. From a point E on the horizontal due to east of a tree, the top of the...

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  15. A vertical pole subtends an angle Tan^-1(1/2) at a point P on the grou...

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  16. The height of a hill is 3300 mts. From the point p on the ground the a...

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  17. An aeroplane is moving one kilometer high from west to east horizontal...

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  18. A spherical balloon of radius 5 subtends an angle 60^(@) at a point on...

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  19. A person in aballoon, who has ascended verticallly from flat land at t...

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  20. A sperical balloon of radius r subtends an angle alpha at the eye of a...

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