PH-2156
Thermal radiation
Physics · Secondary 4 · Medium · Thermal radiation
A satellite has two large flat sides. The side facing the Sun is painted shiny white, and the side facing away from the Sun is painted dull black. What is the main reason for using these colours?
- To absorb more radiation on both sides.
- To reduce absorption of radiation from the Sun and increase emission on the shaded side.
- To increase reflection and conduction of heat in the satellite.
- To reduce convection currents around the satellite.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.