While RADAR's signal speed remains constant, which two factors change?

The answer focuses on the relationship between wavelength and frequency, which are both fundamental properties of waves, including radar signals. While the speed of radar signals in a vacuum is constant (approximately the speed of light), the frequency and wavelength of those signals can vary depending on the specific application or modulation techniques used.

In wave mechanics, the speed of a wave is equal to its frequency multiplied by its wavelength. This relationship can be expressed with the equation: speed = frequency x wavelength. When the speed is held constant, an increase in frequency will result in a corresponding decrease in wavelength, and vice versa. This implies that as the radar operates, if it changes frequency for tuning purposes or to avoid interference, the wavelength must adjust accordingly to maintain the speed of the signal.

Amplitude, on the other hand, refers to the strength or intensity of the radar signal, and speed is constant in this context, making them not relevant factors within the scenario presented. Understanding the dynamics of how frequency and wavelength interact is crucial when studying wave phenomena such as radar technology.