Physics · 2023
JEE Main · 11 April 2023, Shift 1 · Q31
A transmitting antenna is kept on the surface of the earth. The minimum height of receiving antenna required to receive the signal in line of sight…
A transmitting antenna is kept on the surface of the earth. The minimum height of receiving antenna required to receive the signal in line of sight at $\displaystyle 4$ km distance from it is $\displaystyle x \times 10^{-2} \mathrm{~m}$. The value of $\displaystyle x$ is $\displaystyle \_\_\_\_$.
(Let, radius of earth $\displaystyle \mathrm{R}=6400 \mathrm{~km}$ )
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 125$
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.