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JEE Mains 13-Apr-2023 Shift 1 Solved Paper

Section: Physics
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Question : 55 of 90
 
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The elastic potential energy stored in a steel wire of length 20m stretched through 2‌cm is 80J. The cross sectional area of the wire is ________ (. Given, y=2.0×1011Nm−2 ) mm2.
[13-Apr-2023 shift 1]
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