Infrared waves are often called heat waves because they
A. induce resonance of molecules in the skin that becomes thermal energy.
B. are absorbed rather than reflected by the skin.
C. emanate from relatively hot sources.
D. are the predominant waves emitted by the Sun.
E. consist of frequencies lower than those of visible light.
Answer (2)
Infrared waves are called heat waves primarily because they emanate from relatively hot sources and induce thermal energy when absorbed by materials. The correct answer is option C. This association arises from how infrared radiation interacts with various objects, converting energy into heat sensations.
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Infrared waves are called heat waves because they emanate from hot sources, induce molecular vibrations that generate thermal energy, and are primarily absorbed by materials rather than reflected. These properties make them effective at transferring heat. Thus, their association with warmth is well-founded. ;
