Mechanical Properties of Solids · Elasticity
The two wires A and B of equal cross-section but of different materials are joined together. The ratio of Young's modulus of wire A and wire B is 20/11. When the joined wire is kept under certain tension the elongations in the wires A and B are equal. If the length of wire A is 2.2 m, then the length of wire B is m.
- (1)1.1
- (2)2.22
- (3)1.21
- (4)4.44
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