Physics · 2019
JEE Main · 8 April 2019, Shift 1 · Q12
A steel wire having a radius of 2.0 mm, carrying a load of 4 kg, is hanging from a ceiling. Given that g =3.1 π ms^-2, what will be the tensile…
A steel wire having a radius of $\displaystyle 2.0$ mm , carrying a load of $\displaystyle 4$ kg, is hanging from a ceiling. Given that $\displaystyle \mathrm{g}=3.1 \pi \mathrm{~ms}^{-2}$, what will be the tensile stress that would be developed in the wire ?
Official answer
(2)
$\displaystyle 3.1 \times 10^6 \mathrm{Nm}^{-2}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.