Which one of the following substances possesses the highest elasticity
Medium
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Modulus of elasticity gives the idea of elasticity. For above materials, values of
E are:
Glass: $50 - 90\,GPa$
Rubber:$0.01 - 0.1\,GPa$
Steel:$200\,GPa$
Copper: $117\,GPa$
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A wire suspended vertically from one of its ends is stretched by attaching a weight of $200\, N$ to the lower end. The weight stretches the wire by $1\, mm$ Then the elastic energy stored in the wire is ........ $J$
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