102. A copper wire of length 4.0m and area of cross-section 1.2

A copper wire of length 4.0m and area of cross-section 1.2 cm² is stretched with a force of 4.8×10³N. If Young’s modulus for copper is .2×10¹¹ N/m²  the increase in the length of the wire will be

(a) 1.33 mm                    (b) 1.33 cm

(c) 2.66 mm                   (d) 2.66 cm

Answer-a

(16)