A thick rope of rubber of density 1.5 ×10³ kg/m³ and Young's modulus 5×10⁶ N/m², 8m length is hung from the ceiling of a room , the increases in its length due to its own weight is :(g=10m/s²)
A)9.6 x 10⁻² m
B) 19.2 x10⁻⁷ m
C) 9.6 x 10⁻⁷m
D) 9.6m