Which of the following lists the regions of the electromagnetic spectrum in order from shortest wavelength to longest wavelength?

• A. Ultraviolet, visible, infrared, microwaves, X-rays, gamma rays, radio waves
• B. Gamma rays, X-rays, ultraviolet, visible, infrared, microwaves, radio waves
• C. Microwaves, infrared, visible, ultraviolet, X-rays, gamma rays, radio waves
• D. Radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays

Answer: (B)

Verified step by step guidance

1. Recall that the electromagnetic spectrum is ordered by wavelength, with gamma rays having the shortest wavelength and radio waves having the longest wavelength.
2. Identify the relative positions of each region: gamma rays and X-rays have very short wavelengths, ultraviolet is shorter than visible light, which is shorter than infrared, followed by microwaves, and finally radio waves with the longest wavelength.
3. Arrange the given regions from shortest to longest wavelength based on this order: gamma rays, X-rays, ultraviolet, visible, infrared, microwaves, radio waves.
4. Compare the provided answer choices to this correct order to determine which one matches exactly.
5. Select the answer choice that lists the electromagnetic spectrum regions from shortest to longest wavelength as: gamma rays, X-rays, ultraviolet, visible, infrared, microwaves, radio waves.