Home
Class 12
MATHS
At a distance d from the foot of tower A...

At a distance d from the foot of tower AB of height h metres, a flagstaff BC (surmounted on the tower) and the tower subtend equal angles. Then the height of the flagstaff is :

A

`h = (d ^(2) - h ^(2))/( d ^(2) + h ^(2))`

B

`h (d ^(2) + h ^(2))/( d ^(2) - h^(2))`

C

`(d ^(2) + h ^(2))/(d ^(2) - h^(2))`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • HEIGHTS AND DISTANCES

    MODERN PUBLICATION|Exercise LATEST QUESTIONS FROM AIEEE/JEE EXAMINATION|2 Videos

  • HEIGHTS AND DISTANCES

    MODERN PUBLICATION|Exercise QUESTIONS FROM KARNATAKA CET & COMED|1 Videos

  • FUNCTIONS

    MODERN PUBLICATION|Exercise QUESTION FROM KARNATAKA CET & COMED|14 Videos

  • HYPERBOLA

    MODERN PUBLICATION|Exercise Recent Competitive Questions|5 Videos

Similar Questions

Explore conceptually related problems

From the top and bottom of a building of height h metres, the angles of elevation of the top of a tower are alpha and beta respectively. Then the height of the tower is :

The angle of elevation of the top of a chimney from the foot of a tower is 60^(@) and the angle of depression of the foot of the chimney from the top of the tower is 30^(@) . If the height of the tower is 40m, find the height of the chimney. According to pollution control norms, the minimum height of a smoke-emitting chimney should be 100m. State if the height of the above mentioned chimney meets the pollution control norms. What value is discussed in this question?

A body is released from the top of a tower of height metre. It takes time T seconds to reach the ground. Where is the body at time T/2 seconds?

A tower, x metres, has a flagstaff at its top. The tower and the flagstaff subtend equal angles at a point distant y metres from the foot of the tower. The length of the flagstaff (in metres) is

The angle of elevation of the top of a hill from the foot of a tower is 60^(@) and the angle of elevation of the top of the tower from the foot of the hill is 30^(@) . If the height of the tower is 50 m, what is the height of the hill?

From the top of a tower 50 m high, the angle of depression of the top of a pole is 45^(@) and from the foot of the pole, the angle of elevation of the top of the tower is 60^(@) . Find the height of the pole if the pole and tower stand on the same plane.

A tower subtends an angle alpha at a point on the same level as the foot of the tower and at the second point h metres above the first the angle of depression of the base of a tower is beta The height of the tower

A body when released from the top of a tower of height h reaches the ground in time T. At what time it is at a height h/2 above the ground?