CAPE Physics Unit 1 · 2017 · Paper 1 · Question Q37

Item 37 refers to a composite conductor with materials of thermal conductivities, k, k/2, k/3, which has insulated sides. Heat is transferred through the conductor from left to right as shown in the diagram below. Each material has the same thickness. Which of the following graphs 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.