The elastic potential energy stored in a steel wire of length 20 ~m stretched through 2 ~cm is 80 ~J. The cross sectional area of the wire is _ _ _ _ _ mm². (. Given,.y=2.0 × 10¹¹ Nm⁻²)

Properties of Solids and Liquids: JEE Main 2023 Physics question

JEE Main 2023 · 13 Apr, Morning shift · Q69

JEE Main 202313 Apr, Morning shiftPhysicsMediumProperties of Solids and Liquids184× since 2002

The elastic potential energy stored in a steel wire of length

20 \mathrm{~m}

stretched through

2 \mathrm{~cm}

80 \mathrm{~J}

. The cross sectional area of the wire is __________

\mathrm{mm}^{2}

\left(\right.

Given,

\left.y=2.0 \times 10^{11} \mathrm{Nm}^{-2}\right)

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2023 Properties of Solids and Liquids Question with Answer (13 Apr Morning shift, Q69) | JEE Arc