SAT Subject Physics Practice Question 520: Answer and Explanation
6. New thermos bottles have the ability to keep hot substances hot for several days. The thermos bottles have a highly polished interior made of stainless steel, which makes them almost unbreakable. These thermos bottles keep substances hot by reducing heat loss due to
Correct Answer: D
The correct answer is (D). The highly polished interior surface of the thermos bottle reflects radiated heat from the substance back into the substance it is keeping hot.