Which of the following describes the light that can be detected from a person?
A)The person reflects many wavelengths of visible light and emits a continuum of wavelengths of infrared light.
B)The person emits many wavelengths of visible light and reflects a continuum of wavelengths of infrared light.
C)The person absorbs a few narrow wavelengths of visible light according to their composition.
D)The person emits a few narrow wavelengths of visible light according to their composition.

Question

Quizplus · Accepted Answer

When visible light (wavelengths between approximately 400-700 nm) strikes a person, some of the light is reflected and some is absorbed. The absorbed energy is then re-emitted as heat in the form of infrared radiation (wavelengths longer than approximately 700 nm). Therefore, a person reflects many wavelengths of visible light and emits a continuum of wavelengths of infrared light.

Which of the Following Describes the Light That Can Be