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General
Easy
Question
Two wires, one made of copper and other of steel are joined end to end (as shown in figure). The area of cross-section of copper wire is twice that of steel wire.
They are placed under compressive force of magnitudes F. The ratio for their lengths such that change in lengths of both wires are same is (
- 2.1
- 1.1
- 1.2
- 2
The correct answer is: 1.1
And 
Here, 
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