Light is which of the following?

Light is which of the following?

• A. A Material Substance
• B. A Type of Sound
• C. A Form of Radiant Energy That Travels in Waves
• D. A Color Only

Answer: (C)

Light is radiant energy that travels in waves. This shows why it can move through empty space and interact with matter without needing a physical substance to carry it. Light is part of the electromagnetic spectrum, and color comes from specific wavelengths within the visible portion of that spectrum. It isn’t a material substance, and it isn’t a kind of sound, which requires a medium to propagate. Seeing colors is about how our eyes perceive particular wavelengths of visible light, not about light being simply a color itself. Understanding light as radiant energy with wave-like behavior explains phenomena like reflection and refraction as well as why different wavelengths correspond to different colors.

Light is radiant energy that travels in waves. This shows why it can move through empty space and interact with matter without needing a physical substance to carry it. Light is part of the electromagnetic spectrum, and color comes from specific wavelengths within the visible portion of that spectrum. It isn’t a material substance, and it isn’t a kind of sound, which requires a medium to propagate. Seeing colors is about how our eyes perceive particular wavelengths of visible light, not about light being simply a color itself. Understanding light as radiant energy with wave-like behavior explains phenomena like reflection and refraction as well as why different wavelengths correspond to different colors.