Home
Class 11
MATHS
A man standing on a horizontal plane, ob...

A man standing on a horizontal plane, observes the angle of elevation of the top of a tower to be `alpha`.After walking a distance equal to double the height of the tower, the angle of elevation becomes `2alpha` then `alpha` is-

Promotional Banner

Similar Questions

Explore conceptually related problems

A man standing on a level plane observes the anlge of elevation of top of pole to be ' alpha '. He walks a distance equal to double the height of pole towards it and finds that the elevation in 2 alpha " then " alpha =

The angle of elevation of the top of a tower at a horizontal distance equal to the height of the tower from the base of the tower is

The height of a tower is h and the angle of elevation of the top of the tower is alpha . On moving a distance h/2 towards the tower, the angle of elevation becomes beta . What is the value of cot alpha - cot beta

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 :

A person standing on the ground observes the angle of elevation of the top of a tower to be 30^@ On walking a distance a in a certain direction, he finds the elevation of the top to be same as before. He then walks a distance 5/3 a at right angles to his former direction, and finds that the elevation of the top has doubled. The height of the tower is

A person standing on the ground observes the angle of elevation of the top of a tower to be 30^@ On walking a distance a in a certain direction, he finds the elevation of the top to be same as before. He then walks a distance 5/3 a at right angles to his former direction, and finds that the elevation of the top has doubled. The height of the tower is

The angle of elevation of the top of a tower from a point P on the ground is alpha . After walking a distance d meter towards the foot of the tower, angle of elevation is found to be beta . Which angle of elevation is greater?

The angle of elevation of the top of a tower is 30^(@) . if the height of the tower is doubled, then the angle of elevation of its top will also be doubled.