Give any six properties Em waves
Answers
Explanation:
1) Electromagnetic waves travel with a constant velocity of 3 x 108 ms-1 in vacuum. 2) Electromagnetic waves are not deflected by electric or magnetic field. 3) Electromagnetic waves can show interference or diffraction. 4) Electromagnetic waves are transverse 5) waveswavelength and frequency related as c=vλ. 6) Need no medium of propagation.
Property 1: Electromagnetic waves are transverse in nature.
Property 2: They propagate by varying electric fields and magnetic fields, such that these two fields are at right angles to each other and at a right angle with the direction of propagation of the wave.
Property 3: Electromagnetic waves travel with a constant velocity in vacuum. The speed of the waves is 3 x 108 m/s.
Property 4: Electromagnetic waves are non-mechanical waves. They do not require any material medium for propagation.
Property 5: They obey the equation c = fλ. Here, f is the frequency is Hertz and λ is the wavelength metres. The product of wavelength and frequency is equal to a constant c, the speed of light which is equal to 3 x 108 m/s. From this relation between wavelength, frequency and speed of light we can understand that the electromagnetic waves will travel with the speed of light regardless of wavelength and frequency.
Property 6: The oscillating electric field and magnetic field are in the same phase. The ratio of the amplitudes of the electric field and the magnetic field is equal to the velocity of the wave.