If a bar of sections of two different length and different diameters are in a li

Question

If a bar of sections of two different length and different diameters are in a line and P load is acting axially on them then what will be the change in length of the bar?

Options:

A . P/E x (L₁ + L₂)

B . P/E x (A₁/L₁ + A₂/ L₂)

C . P/E x (L₁/A₁ + L₂/A₂)

D . E/P x (L₁/A₁ + L₂/A₂)

Answer: Option C
Answer: (c).P/E x (L₁/A₁ + L₂/A₂)

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