CAPE Physics Unit 1 · 2010 · Paper 1 · Question Q36

A composite conductor with materials of thermal conductivities k, k/2, k/3 has insulated sides. Heat is transferred through it from left to right as shown in the diagram below. Each material has the same thickness. Which of the following diagrams BEST describes the temperature gradient of the composite wall?

1. (A)[diagram option — open in Quelpr]
2. (B)[diagram option — open in Quelpr]
3. (C)[diagram option — open in Quelpr]
4. (D)[diagram option — open in Quelpr]

This question uses a figure or table from the paper — you'll see it when you practise.