A bar having two sections of cross sectional area of 100mm² and 200mm²

Question

A bar having two sections of cross sectional area of 100mm² and 200mm² respectively. The length of both the sections is 200mm. What will be the total strain in the bar if it is subjected to axial force of 100kN and E = 10⁵ N/mm²?

Options:

A . 0.010

B . 0.015

C . 0.020

D . 0.030

Answer: Option B
Answer: (b).0.015

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