118. A wire of cross section

A wire of cross section 4 mm² is stretched by 0.1 mm by a certain weight. How far (length) will be wire of same material and length but of area 8 mm² stretch under the action of same force

(a)  0.05 mm                                 (b)   0.10 mm

(c)  0.15 mm                                 (d)   0.20 mm

(e)  0.25 mm

Answer-a

(8)