1.

Figure shows the graph of elastic potential energy (U) stored versus extension, for a steel wire (Y=2×1011 Pa) of volume 200 cc. If area of cross-section (A) and original length (L), then

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Figure shows the graph of elastic potential energy (U) stored versus extension, for a steel wire (Y=2×1011 Pa) of volume 200 cc. If area of cross-section (A) and original length (L), then






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