Question

Which of the following statements is true, about wavelengths in the electromagnetic spectrum?

Select one or more:
a. Infrared waves are longer than gamma rays.
b. Gamma rays are longer than ultraviolet rays.
c. Microwaves are shorter than visible light waves.
d. Radio waves are shorter than gamma rays.

Answer 1

Infrared waves have longer wavelengths than gamma rays, which is a true statement regarding the electromagnetic spectrum; the remaining statements provided are false.

Step-by-step explanation:

Among the given options:

• Infrared waves are longer than gamma rays.
• Gamma rays are longer than ultraviolet rays.
• Microwaves are shorter than visible light waves.
• Radio waves are shorter than gamma rays.

The correct statements, with reference to the wavelengths in the electromagnetic spectrum, are:

• Option a is true; infrared waves indeed have longer wavelengths than gamma rays.
• Option b is false; gamma rays have shorter wavelengths than ultraviolet rays.
• Option c is false; microwaves have longer wavelengths than visible light waves.
• Option d is false; radio waves have the longest wavelengths of all types of electromagnetic waves, and thus are longer than gamma rays, which have the shortest wavelengths.