Question
A wire of length 2m is made from 10 cm³ of copper. A force F is applied so that its length increases by 2 mm. Another wire of length 8 m is made from the same volume of copper. If the force F is applied to it, its length will increase by
Options :
0.8 cm
1.6 cm
2.4 cm
3.2 cm
Answer :
3.2 cm
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