The area of cross-section of a railway track is 0.01 {m}^{2}. The temperature variation is 10^\circ{C}. Coefficient of linear expansion of material of track is 10^{-5} \/{ }^\circ{C}. The energy stored per meter in the track is _______ {J} \/ {m}. (Young's modulus of material of track is 10^{11} {Nm}^{-2} ) [22 Jul 2021 Shift 2]

JEE Main 22 July 2021 Shift 2 Solved Paper

Section: Physics

Question : 28 of 90

Marks: +1, -0

The area of cross-section of a railway track is 0.01m2. The temperature variation is 10°C. Coefficient of linear expansion of material of track is 10−5∕‌°C. The energy stored per meter in the track is _______ J∕m.
(Young's modulus of material of track is 1011Nm−2 )

[22 Jul 2021 Shift 2]

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