Which description correctly identifies what is located to the right of the visible spectrum?

Which description correctly identifies what is located to the right of the visible spectrum?

• A. Ultraviolet rays, X-rays, and gamma rays
• B. The visible spectrum only
• C. Infrared rays, microwaves, and radio waves
• D. Sound waves

Answer: (C)

The electromagnetic spectrum is arranged by wavelength, with visible light occupying a small middle band. To the right of visible light have longer wavelengths, including infrared rays, microwaves, and radio waves. These are the waves you’d encounter in heat detection or wireless communication, and they all have lower frequencies than visible light. The other options point to waves with shorter wavelengths (ultraviolet, X-rays, gamma rays) or to something that isn’t an electromagnetic wave at all (sound waves), so they don’t lie to the right of the visible spectrum.

The electromagnetic spectrum is arranged by wavelength, with visible light occupying a small middle band. To the right of visible light have longer wavelengths, including infrared rays, microwaves, and radio waves. These are the waves you’d encounter in heat detection or wireless communication, and they all have lower frequencies than visible light. The other options point to waves with shorter wavelengths (ultraviolet, X-rays, gamma rays) or to something that isn’t an electromagnetic wave at all (sound waves), so they don’t lie to the right of the visible spectrum.