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From the top of a chiff 30 metres high, ...

From the top of a chiff 30 metres high, the angle of elevation of the top of a tower is found to be equal to the angle of depression of the foot of the tower. The height of the tower is

A

`30` mts

B

`15sqrt(2)`mts

C

`60`mts

D

`30sqrt(2)`mts

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The correct Answer is:
C
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AAKASH SERIES-HEIGHTS AND DISTANCES-PRACTICE SHEET Exercise-I (Level-I) (Straight Objective Type Questions)
  1. A person observes the top of a tower from a point A on the ground. the...

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  2. From the top of a tree, a man observes the angle of deppression of a p...

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  3. From the top of a chiff 30 metres high, the angle of elevation of the ...

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  4. A tower subtends an angle alpha at a point A on the same level as the ...

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  5. From the top of the hill h meers high the angles of depressinons of th...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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