Mathematics · 2021
JEE Main · 3 August 2021, Shift 1 · Q79
A vertical pole consists of two portions, the lower being 1/3 rd of the whole. If the upper portion subtends an angle tan^-1(1/2) at a point on a…
A vertical pole consists of two portions, the lower being $\displaystyle \frac{1}{3} \mathrm{rd}$ of the whole. If the upper portion subtends an angle $\displaystyle \tan ^{-1}\left(\frac{1}{2}\right)$ at a point on a horizontal plane drawn through the foot of the pole and at a distance $\displaystyle 40$ m from it, then the height (in m ) of the pole can be
Official answer
(3)
$\displaystyle 40$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.