Question

The graph shows the extension (∆l) of a wire of length 1 m suspended from the top of a roof at one end and with a load W connected to the other end. If the cross sectional area of the wire is 10^-6 m², calculate the Young’s modulus of the material of the wire:

(a) 2 x 10¹¹ Nm^-2

(b) 2 x 10^-11 Nm^-2

(c) 3 x 10^-12 Nm^-2

(d) 2 x 10¹³ Nm^-2

Answer 1

Correct option is : (a) 2 x 10¹¹ Nm^-2