Radio waves belong to the class of wave whose velocity is about
Answer Details
Radio waves belong to the class of wave whose velocity is about 3 × 10^8 m/s.
Radio waves are a type of electromagnetic wave, which means they are composed of both electric and magnetic fields that oscillate at right angles to each other and to the direction of wave propagation. Like all electromagnetic waves, radio waves travel at the speed of light in a vacuum, which is approximately 3 × 10^8 m/s. This means that radio waves also travel at this speed in air and other materials, although their speed may be slightly slower in denser materials like water or metal.
It's important to note that the velocity of a wave refers to the speed at which the wave propagates through a medium, which is different from the frequency and wavelength of the wave. The frequency of a wave refers to the number of oscillations per unit time, while the wavelength refers to the distance between two successive peaks or troughs of the wave. Radio waves can have a wide range of frequencies and wavelengths, which determine their properties and applications in various fields such as communication, broadcasting, and remote sensing.