1. The height of a tower is 50√3 m. The angle of elevation of a tower from a distance 50 m from its feet is





Write Comment

Type in
(Press Ctrl+g to toggle between English and the chosen language)

Comments

  • By: anil on 05 May 2019 01.49 am
    Given : AB is the tower = $$50sqrt{3}$$ m and BC = 50 m To find : $$angle$$ ACB = $$ heta$$ = ? Solution : In $$ riangle$$ ABC => $$tan( heta)=frac{AB}{BC}$$ => $$tan( heta)=frac{50sqrt{3}}{50}$$ => $$tan( heta)=sqrt{3}$$ => $$ heta=tan^{-1}(sqrt{3})$$ => $$ heta=60^circ$$ => Ans - (C)
Show Similar Question And Answers
QA->The height of a chimney is "h" meter and the observer is located at a distance of ’s’ meter. Its angle of elevation " φ will be :....
QA->The biggest Hanuman statue in South India with 70 feet height was unveiled in?....
QA->If the angle of intersection of a curve is φ., then deflection angle will be :....
QA->A liquid will not wet the surface of solid if the angle of contact is which angle?....
QA->If one wants to throw a cricket ball to the maximum distance, then at which angle should he throw it....
MCQ->Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives. The Eiffel Tower is an iron lattice tower located on the Champ de Mars in Paris. It was named after the engineer Gustave Eiffel, whose company designed and built the tower. Erected in 1889, it was initially criticised by some of France's leading artists and intellectuals for its design, but has become both a global cultural icon of France and one of the most recognisable structures in the world. The tower is the tallest structure in Paris and the most visited monument in the world 6.98 million people ascended it in 2011. The tower received its 250 millionth visitor in 2010. The tower is 324 metres, about the same height as an 81-storey building. During its construction, the Eiffel Tower surpassed the Washington Monument to assume the title of the tallest man-made structure in the world. The tower has three levels for visitors, with restaurants on the first and second. Tickets can be purchased to ascend by stairs or lift to the first and second levels. Although there are stairs to the third and highest level, these are usually closed to the public and it is generally only accessible by lift. As a global landmark, the Eiffel Tower is featured in media including films, video games, and television shows. Which statement truly reflects the status of the Eiffel Tower?....
MCQ->A car is travelling on a straight road leading to a tower. From a point at a distance of 500 m from the tower, as seen by the driver, the angle of elevation of the top of the tower is 30°. After driving towards the tower for 10 seconds, the angle of elevation of the top of the tower as seen by the driver is found to be 60°. Then the speed of the car is....
MCQ-> Read the passage given below and answer the questions that follow it:Elevation has always existed but has just moved out of the realm of philosophy and religion and been recognized as a distinct emotional state and a subject for psychological study. Psychology has long focused on what goes wrong, but in the past decade there has been an explosion of interest in “positive psychology”—what makes us feel good and why. University of Virginia moral psychologist Jonathan Haidt, who coined the term elevation, writes, “Powerful moments of elevation sometimes seem to push a mental ‘reset button,’ wiping out feelings of cynicism and replacing them with feelings of hope, love, and optimism, and a sense of moral inspiration.” Haidt quotes first-century Greek philosopher Longinus on great oratory: “The effect of elevated language upon an audience is not persuasion but transport.” Such feeling was once a part of our public discourse. After hearing Abraham Lincoln’s second inaugural address, former slave Frederick Douglass said it was a “sacred effort.” But uplifting rhetoric came to sound anachronistic, except as practiced by the occasional master like Martin Luther King Jr.It was while looking through the letters of Thomas Jefferson that Haidt first found a description of elevation. Jefferson wrote of the physical sensation that comes from witnessing goodness in others: It is to “dilate [the] breast and elevate [the] sentiments … and privately covenant to copy the fair example.” Haidt took this description as a mandate. Elevation can so often give us chills or a tingling feeling in the chest. This noticeable, physiological response is important. In fact, this physical reaction is what can tell us most surely that we have been moved. This reaction, and the prosocial inclinations it seems to inspire, has been linked with a specific hormone, oxytocin, emitted from Vagus nerve which works with oxytocin, the hormone of connection. The nerve’s activities can only be studied indirectly.Elevation is part of a family of self-transcending emotions. Some others are awe, that sense of the vastness of the universe and smallness of self that is often invoked by nature; another is admiration, that goose-bump-making thrill that comes from seeing exceptional skill in action. While there is very little lab work on the elevating emotions, there is quite a bit on its counterpart, disgust. It started as a survival strategy: Early humans needed to figure out when food was spoiled by contact with bacteria or parasites. From there disgust expanded to the social realm—people became repelled by the idea of contact with the defiled or by behaviors that seemed to belong to lower people. “Disgust is probably the most powerful emotion that separates your group from other groups.” Haidt says disgust is the bottom floor of a vertical continuum of emotion; hit the up button, and you arrive at elevation. Another response to something extraordinary in another person can be envy, with all its downsides. Envy is unlikely, however, when the extraordinary aspect of another person is a moral virtue (such as acting in a just way, bravery and self-sacrifice, and caring for others).Which of the options below is false according to the passage?
 ....
MCQ->A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30? with the man's eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes 60?. What is the distance between the base of the tower and the point P?....
MCQ->The angle of elevation of the top of a tower from a point A on the ground is 30˚. On moving a distance of 20 metres towards the foot of the tower to a point B, the angle of elevation increases to 60˚. The height of the tower in metres is....
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use
DMCA.com Protection Status Powered By:Omega Web Solutions
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions