One end of a metal wire is fixed to a ceiling and a load of 2 ~kg hangs from the other end. A similar wire is attached to the bottom of the load and another load of 1 ~kg hangs from this lower wire. Then the ratio of longitudinal strain of upper wire to that of the lower wire will be _ _ _ _. [Area of cross section of wire =0.005 ~cm², Y=2 × 10¹¹ Nm⁻² and g=10 ~ms⁻² ]

Properties of Solids and Liquids: JEE Main 2024 Physics question

JEE Main 2024 · 1 Feb, Evening shift · Q75

JEE Main 20241 Feb, Evening shiftPhysicsHardProperties of Solids and Liquids184× since 2002

One end of a metal wire is fixed to a ceiling and a load of

2 \mathrm{~kg}

hangs from the other end. A similar wire is attached to the bottom of the load and another load of

1 \mathrm{~kg}

hangs from this lower wire. Then the ratio of longitudinal strain of upper wire to that of the lower wire will be ________. [Area of cross section of wire

=0.005 \mathrm{~cm}^2, \mathrm{Y}=2 \times 10^{11} \mathrm{Nm}^{-2}

and

\mathrm{g}=10 \mathrm{~ms}^{-2}

]

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