A bar is in two sections having equal lengths. The area of cross section of 1st

Question

A bar is in two sections having equal lengths. The area of cross section of 1st is double that of 2nd. if the bar carries an axial load of P, then what will be the ratio of elongation in section 2nd to section 1st ?

Options:

A . 1/2

B . 2

C . 4

D . 1/4

Answer: Option B
Answer: (b).2

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