Electromagnetic waves along with thier properties

A wave motion refers to a carrier medium of energy from one particular point to another without there being any kind of transfer of any matters between these two points. Waves may be classified as being either mechanical or electromagnetic. A mechanical wave is the disturbance that requires a material medium for it's propagation, e.g., water waves, waves in stretched strings, etc. It is also known as elastic waves. The electromagnetic waves are the waves in which the various of electric and magnetic filed take place during their propagation, e.g., visible light rays, x-rays, gamma-rays, radio waves, etc. They can travel through a vacuum. The solar radiation which we receive everyday is also electromagnetic waves.
       Infrared radiation, visible light and ultraviolet radiation are all members of the same electromagnetic spectrum. Some common properties of electromagnetic waves are as follows:
1. All electromagnetic waves travel through a medium or in a vacuum at the same speed i.e., 3*10^8 ms-1.
2. They are unaffected by electric and magnetic fields.
3. They are transverse wave.
4. The wave equation "speed= frequency*wavelength" can be applied.
5. They all, under suitable conditions, can be reflected, refracted and diffracted.
                                            They are characterized by their different frequencies (or wavelengths). Ultraviolet radiation has a greater  frequency than visible light and infrared has a lower frequency than visible light.