SC-1474
Radiation
Lower Sec Science · Secondary 2 · Easy · Radiation
A thermos flask has a shiny silver surface on the inside of its double walls. What is the main purpose of this shiny surface?
- To reflect heat radiation and reduce heat loss or gain.
- To absorb heat radiation and keep the drink hot.
- To conduct heat quickly through the walls.
- To allow convection currents to form in the walls.
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