What is also known as radiant heat, and is found at the lower energy end of the visible spectrum?

Study for the Bioenvironmental Engineering (BEE) Block 6 Exam. Utilize flashcards and multiple choice questions, with hints and explanations for each question. Prepare for your exam with confidence!

Multiple Choice

What is also known as radiant heat, and is found at the lower energy end of the visible spectrum?

Explanation:
Radiant heat is energy transferred through electromagnetic waves, not by touching or moving air. Infrared radiation is the portion of the spectrum that carries heat and sits at the lower-energy end, just beyond the red end of visible light. Objects at typical temperatures emit infrared, and our skin absorbs it and converts it into warmth, which is why you feel heat from a heater or the sun even if you don’t see it. Ultraviolet has higher-energy photons and can cause effects like sunburn, visible light is the light we can see, and radiofrequency radiation has even lower energy and is not primarily experienced as warmth. So infrared is the term that matches radiant heat.

Radiant heat is energy transferred through electromagnetic waves, not by touching or moving air. Infrared radiation is the portion of the spectrum that carries heat and sits at the lower-energy end, just beyond the red end of visible light. Objects at typical temperatures emit infrared, and our skin absorbs it and converts it into warmth, which is why you feel heat from a heater or the sun even if you don’t see it. Ultraviolet has higher-energy photons and can cause effects like sunburn, visible light is the light we can see, and radiofrequency radiation has even lower energy and is not primarily experienced as warmth. So infrared is the term that matches radiant heat.

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