Young's modulus for a steel wire is 2 xx...

Young's modulus for a steel wire is 2 `xx` `10^11` Pa and its elastic limit is 2.5 `xx` `10^8`Pa. By how much can a steel wire 3 m long and 2 mm in diameter be stretched before the elastic limit is exceeded ?

3.75 mm

7.50 mm

4.75 mm

4.00 mm

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