Home
Class 8
MATHS
Two persons are a metres apart and th...

Two persons are a metres apart and the height of one is double that of the other. If from the middle point of the line joining their feet, an observer finds the angular elevation of their tops to be complementary, then the height of the shorter post is `a/4` (b) `a/(sqrt(2))` (c) `asqrt(2)` (d) `a/(2sqrt(2))`

A

20 m

B

` 10 (1 + sqrt(2))` m

C

` 10 sqrt(2) `m

D

` 20 sqrt(2) ` m

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SOME APPLICATIONS OF TRIGONOMETRY

    S CHAND IIT JEE FOUNDATION|Exercise Self Assessment Sheet - 33 |10 Videos

  • SOME APPLICATIONS OF TRIGONOMETRY

    S CHAND IIT JEE FOUNDATION|Exercise Unit Test - 6 |20 Videos

  • SOME APPLICATIONS OF TRIGONOMETRY

    S CHAND IIT JEE FOUNDATION|Exercise Unit Test - 6 |20 Videos

  • SIMULTANEOUS LINEAR EQUATIONS

    S CHAND IIT JEE FOUNDATION|Exercise SELF ASSESSMENT SHEET|10 Videos

  • SQUARE ROOTS AND CUBE ROOTS

    S CHAND IIT JEE FOUNDATION|Exercise SELF ASSESSMENT SHEET-4|10 Videos

Similar Questions

Explore conceptually related problems

Two persons are 'a' meters apart and the height of one is double that of the other,if from the middle point of the line joining their feet,an observer find the angular elevation of their tops to be complementary then the height of shorter person is:

Two posts are 120m apart and the height of one is double of the other. From the middle point of the line joining their feet,an observer finds that the angular elevations of their tops to be complementary,the product of the heights of the posts is

Two poles are a metres apart and the height of one is double of the other.If from the middle point of the line joining their feet an observer finds the angular elevations of their tops to be complementary,then the height of the smaller is sqrt(2)a metres (b) (1)/(2sqrt(2)) metres (a)/(sqrt(2)) metres (d) 2a metres

Two vertical poles are 150 m apart and the height of one is three times that of the other if from the middle point of the line joining their feet , an observer finds the angles of elvation of their tops ot be complememntary then the height of the shorter pole ( in meters ) is :

Two posts are x meters apart and the height of one is double that of the other. If from the mid-point of the line joining their feet, an observer finds the angle of elevations of their tops to be complementary, then the height (in meters) of the shorter post is दो खंभे एक दूसरे से xमी दूर है तथा एक खंभा दूसरे का दो गुणा था। अगर उनके पायों को जोड़ने वाली रेखा के मध्य बिन्दू पर खड़ा एक प्रेक्षक उनके उन्नयन कोण पूरक पाता तब छोटे खंभे की ऊँचाई बताइये।

Two posts are k metres apart. If from the middle point of the line joining their feet, an observer finds the angles of elevations of their tops to be 60^(@) and 30^(@) respectively, then the ratio of heiht of the posts respectively is

Two poles, one is double in length of other, are standing opposite to each other at distance of y meter. If angle of elevation from mid point of the line joining their feet are complementary then what is the height of the shorter pole ?

Two positive charges of 1mu C and 2 mu C are placed 1 metre apart. The value of electric field in N/C at the middle point of the line joining the charge will be :