A force is applied to a steel wire ‘\( A \)’, rigidly clamped at one end. As a result elongation in the wire is \( 0.2 \, \text{mm} \). If same force is applied to another steel wire ‘\( B \)’ of double the length and a diameter \( 2.4 \) times that of the wire ‘\( A \)’, the elongation in the wire ‘\( B \)’ will be (wire having uniform circular cross sections)
