Arrange the waves of the electromagnetic spectrum from the lowest frequency to the highest frequency.

• A. Radio Waves, Microwaves, Visible Light, Infrared Waves, Ultraviolet, X-rays, Gamma Rays
• B. Radio Waves, Microwaves, Infrared Waves, Visible Light, Ultraviolet, X-rays, Gamma Rays
• C. Microwaves, Radio Waves, Infrared, Visible Light, Ultraviolet, X-rays, Gamma Rays
• D. Radio Waves, Microwaves, Infrared, Ultraviolet, Visible Light, X-rays, Gamma Rays

Answer: (B)

Understanding that electromagnetic waves are arranged from lowest to highest frequency, with longer wavelength corresponding to lower frequency and shorter wavelength to higher frequency. Since the speed of light is constant in vacuum, frequency and wavelength are inversely related: higher frequency means shorter wavelength.

So the sequence from lowest to highest frequency is radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. This matches the correct choice.

Other sequences misplace parts of the order: putting visible light before infrared would imply infrared has a higher frequency than visible light, which isn’t right; starting with microwaves before radio reverses the very first step; and placing ultraviolet before visible also contradicts the increasing frequency pattern.