PhysicsJEE Main 5 Apr 2026, Shift 2·Q21·Numerical·Easy–moderate

Mechanical Properties of Solids · Elasticity

A copper wire of length 3 m is stretched by 3 mm by applying an external force. The volume of the wire is

600\times10^{-6}\ \mathrm{m^3}

. The elastic potential energy stored in the wire in stretched condition would be J.
(Given Young modulus of copper

= 1.1\times10^{11}\ \mathrm{N/m^2}

)

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