Find the longitudinal stress applied to a steel wire to stretch it by 0.025% of its original length, if the ratio of longitudinal stress and strain is 9×1010Nm−2.
A
2.25×107Nm−2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
2.5×105Nm−2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
2.25×105Nm−2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
2.5×109Nm−2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A2.25×107Nm−2 As we know,
Longitudinal strain =Change in lengthOriginal length=Δll=0.025×10−2×ll =2.5×10−4