Which of the following waves on the electromagnetic spectrum has the longest wavelength? \( (1 \) poi X-rays infrared waves microwaves gamma rays

To determine which wave on the electromagnetic spectrum has the longest wavelength, we can compare the general characteristics of the waves listed: 1. **X-rays**: These have relatively short wavelengths, typically in the range of \(0.01\) to \(10\) nanometers. 2. **Infrared waves**: These have longer wavelengths than X-rays, generally ranging from \(700\) nanometers to \(1\) millimeter. 3. **Microwaves**: These have even longer wavelengths, typically ranging from \(1\) millimeter to \(1\) meter. 4. **Gamma rays**: These have the shortest wavelengths in the electromagnetic spectrum, usually less than \(0.01\) nanometers. Based on this information, the order of wavelengths from longest to shortest is: - Microwaves - Infrared waves - X-rays - Gamma rays Thus, the wave with the longest wavelength among the options provided is **microwaves**.