The Thermal Conductivity of Silver Is 427 J/s⋅m⋅°C and of Copper

Multiple Choice

The thermal conductivity of silver is 427 J/s⋅m⋅°C and of copper is 397 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 silver to the heat transferred by the copper?

A) 1.076
B) 1.614
C) 2.421
D) 0.538
E) ​0.915