2. To break a wire, a force of

2. To break a wire, a force of 10⁶ N/m² is required. If the density of the material is 3×10³ Kg/cm³  , then the length of the wire which will break by its own weight will be

(a)   34 m                                                (b)   30 m

(c)   300 m                                             (d)   3 m

Answer-a