Question

If 250 N of force is applied at the one end of a vertically hanging rod. Length of rod is 100 cm and cross-sectional area of rod is 6.25 x 10^-4 m². Then find elongation in rod. (Y rod = 10¹⁰ N/m²)

(1) 0.04 mm

(2) 0.02 mm

(3) 0.01 mm

(4) 0.025 mm

Answer 1

Correct option is (1) 0.04 mm