Electromagnetic waves, or EM waves in short, are transverse waves which consist of a combination of oscillating electrical and magnetic fields, perpendicular to each other. Unlike other waves, electromagnetic waves can travel both in the presence and absence of a medium.
Despite not carrying mass, they carry energy. They have momentum and besides, they can exert pressure which is called radiation pressure. The speed of an electromagnetic wave in vacuum is equal to c = 3.00 x 108 m/s , and it is calculated by the formulae “c = f × λ” where ‘f’ is the frequency and ‘λ’ is wavelength.
These waves are significant for our daily life. They have a wide range of usage. They are used in microwaves, radio waves and even in cancer treatment. Nevertheless, they have some cons in addition to their pros. For instance some of these waves give harm to human skin and cause skin cancer.
In this part, I’d like share a work of mine which is based on EM waves. I have used different sources to prepare it and you can find my references at the end of my work.
Hope you find it useful!