A container is designed with a vacuum layer between its inner and outer walls to minimize thermal energy transfer. Which method(s) of thermal energy transfer can still travel through this vacuum layer?
Conduction only
Convection only
Radiation only
Conduction and convection only
99 exam-style questions on CIE IGCSE Physics 2.3.3a Thermal radiation. Each one has a worked solution and a mark scheme showing where the marks go.