• Dec 13, 2025 Section 18 2the Electromagnetic Spectrum he electromagnetic spectrum is typically divided into several categories based on wavelength and frequency: Radio waves: These have the longest wavelengths and lowest frequencies. They 1. are used for communication such as TV, radio broadcasting, and cell phones. Microwave By Shemar Bosco
• Dec 6, 2025 section 18 2the electromagnetic spectrum answer ive — wavelengths roughly between 400 nm (violet) and 700 nm (red). It is fundamental to vision, photography, and illumination. Features and Uses: Enables sight Used in optical fibers, microscopes, and cameras Pros: Direc By Lisa Williamson-Kuvalis II
