electromagnetic spectrum

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes visible light, radio waves, microwaves, infrared, ultraviolet, X-rays, and gamma rays.

As the wavelength of electromagnetic waves decreases, the frequency increases. This is described by the equation: speed = wavelength × frequency.

Red light has the longest wavelength in the visible spectrum.

Gamma rays have the highest frequency in the electromagnetic spectrum.

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 300,000 km/s).

Radio waves are used for communication, including radio and television broadcasting, as well as for mobile phones and wireless networks.

Infrared radiation has longer wavelengths than visible light and is primarily associated with heat, while ultraviolet radiation has shorter wavelengths and can cause sunburn.

Wave-particle duality is the concept that electromagnetic radiation exhibits both wave-like and particle-like properties.

Electromagnetic waves do not need matter to transfer energy; they can travel through a vacuum.

Sound waves require a medium (solid, liquid, or gas) to travel through, while electromagnetic waves can travel through a vacuum.