The Thermal Conductivity of Copper Is 397 J/s⋅m⋅°C and of Silver

Multiple Choice

The thermal conductivity of copper is 397 J/s⋅m⋅°C and of silver is 427 J/s⋅m⋅°C.A rod of each material is used as a heat conductor.If the rods have the same geometry and are used between the same temperature differences for the same time interval,what is the ratio of the heat transferred by copper to the heat transferred by the silver?

A) 0.930
B) 1.395
C) 2.093
D) 0.465
E) 0.791