Electromagnetic waves consist of varying electric and magnetic fields. The two fields are perpendicular to each other and to the direction of travel of the wave. Each vibrates at the same frequency - the frequency of the wave. The waves all travel at the same speed in a vacuum - 2.998x108 ms-1. They are unaffected by electric and magnetic fields, and in general travel in straight lines.
http://jcsu.jesus.cam.ac.uk/~rpc25/notes/physics/waves/waves.html
A plane electromagnetic wave is said to be linearly polarized. The transverse electric field wave is accompanied by a magnetic field wave as illustrated. Circularly polarized light consists of two perpendicular electromagnetic plane waves of equal amplitude and 90° difference in phase.
http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/polclas.html
where A is the amplitude of oscillation, f is the frequency, t is the elapsed time, and is the phase of the oscillation. The phase determines or is determined by the initial displacement at time t = 0. A motion with frequency f has period.
http://physics.wikia.com/wiki/Phase_(waves)
The energy of the wave is in the electric and the magnetic fields of the electromagnetic waves, therefore, require no medium for propagation. In a vacuum, electromagnetic waves travel at the speed of light, which is a constant (2.9979 x 108ms-1). The intensity/strength of the electric field and the magnetic field has a constant ratio, and they oscillate in phase (i.e. the peaks and the troughs are occurring at the same time during propagation)
http://www.differencebetween.com/difference-between-electromagnetic-radiation-and-vs-electromagnetic-waves/
however much closer to the source, the E and B fields are not in-phase and, in the limit as you close in on the source, the E and B fields are 90 degrees out of phase. the same is true for the instantaneous pressure (difference from atmospheric) and particle velocity of a spherically expanding sound wave. #5.
https://www.physicsforums.com/threads/phase-relationship-is-electromagnetic-wave.130336/
Electromagnetic waves contain time varying electric and magnetic field perpendicular to each other and also to path of progression. The phase difference between electric field vector and magnetic field vector is zero. How the phase difference is zero? Because when E is at ∏/2, B is at -∏/2.
https://forum.allaboutcircuits.com/threads/electromagnetic-waves-and-phase-difference.60657/
Difference Between Electromagnetic Radiation and Electromagnetic Waves. Energy is one of the primary constituents of the universe. It is conserved throughout the physical universe, never created or never destroyed but transforming from one form to another.
http://www.differencebetween.com/difference-between-electromagnetic-radiation-and-vs-electromagnetic-waves/
Classification of Polarization. Light in the form of a plane wave in space is said to be linearly polarized. Light is a transverse electromagnetic wave, but natural light is generally unpolarized, all planes of propagation being equally probable. If light is composed of two plane waves of equal amplitude by differing in phase by 90°, then the light is said to be circularly polarized.
http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/polclas.html
A wave is a method of transferring energy from one place to another without transferring matter. Mechanical waves are those that require a medium for their transfer and include water waves, sound waves and waves in stretched strings.
http://jcsu.jesus.cam.ac.uk/~rpc25/notes/physics/waves/waves.html
Phase relationship is electromagnetic wave. #1. vebrown. What is the phase relationship between the magnetic component and the electric component of an electromagnetic field. Is it in phase, or 90 degrees out of phase.
https://www.physicsforums.com/threads/phase-relationship-is-electromagnetic-wave.130336/
what is phase difference of an electromagnetic wave
The phase difference of an electromagnetic wave is 90 degrees.