Question

electromagnetic waves are usually categorized by their ____________. page 315 electromagnetic waves can also be categorized by their ____________.

Explanation:

Electromagnetic waves are categorized based on their properties. Wavelength is a fundamental characteristic used for categorization as different wavelengths correspond to different types of electromagnetic waves (e.g., radio waves have long wavelengths, gamma rays have short wavelengths). Frequency is also a key property. Since \(c = \lambda f\) (where \(c\) is the speed of light, \(\lambda\) is wavelength, and \(f\) is frequency), and \(c\) is constant for electromagnetic waves in a vacuum, wavelength and frequency are related. So, electromagnetic waves can be categorized by either wavelength or frequency.

Answer:

wavelength; frequency