What is the correct order of the following electromagnetic waves in increasing wavelength?

The correct order of electromagnetic waves in increasing wavelength is determined by their positions on the electromagnetic spectrum. Electromagnetic waves can be arranged from shorter wavelengths (and higher frequencies) to longer wavelengths (and lower frequencies).

X-rays have very short wavelengths, typically on the order of nanometers, and are followed closely by ultraviolet light, which has slightly longer wavelengths, ranging from about 10 nanometers to 400 nanometers. Next in line are microwaves, which have wavelengths ranging from about 1 millimeter to 30 centimeters. Finally, radio waves have the longest wavelengths, ranging from about 1 millimeter to several kilometers.

Therefore, the arrangement from shortest to longest wavelength is: X-rays, ultraviolet light, microwaves, and then radio waves, which supports the assertion in the first option. Understanding the positions of these waves on the electromagnetic spectrum is crucial for comprehending their properties and applications in various fields, such as medical imaging with X-rays or communication technologies utilizing radio waves.