Physics · 2018
NEET 2018 · 6 May · Code AA · Q44
Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the second wire has cross-sectional…
Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the second wire has cross-sectional area 3A. If the length of the first wire is increased by $\displaystyle \Delta l$ on applying a force F, how much force is needed to stretch the second wire by the same amount ?
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 9$ F
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NEET (UG) 2018 Physics question, with the answer from NTA’s final answer key. Where our answers come from.