JEE Main 2021MathematicsHeights and DistancesEasyMCQ

JEE Main 2021 — Heights and Distances Question with Solution

JEE Main 2021 (24 Feb Shift 1)

Question

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 elevation of their tops to be complementary, then the height of the shorter pole (in meters) is:

Choose an option

Show full solutionCorrect option: D
Correct answer
D253

Step-by-step explanation

tanθ=h75=753 h

⇒  h2=7523

h=253 m

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About this question

This is a previous-year question from JEE Main 2021, covering the Heights and Distances chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.