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This is the electric field vector of a plane-wave light beam of angular frequency ω=2πc/λ travelling in the direction of a unit vector n with velocity c: E=E(0) exp [-iω(t-n·r/c)]
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What are polarized LEDs?
direction of oscillation of electric field relative to direction of motion:verticalhorizontalcircular clockwisecircular counterclockwiseany combination of above
Does light produce both electric and magnetic field?
light exhibit magnetic field but i cant say about electric Field...
What is the Difference between plane of polarization and plane of vibration?
A plane including the direction of light propagation and the direction of electric field is called the "plane of vibration". The "plane of polarization" is a confinement of the electric/magnetic field vector to a given plane along the direction of propagation.
Do polarized light consists of waves that vibrate in one direction only?
No, it isn't one direction, otherwise there would not have been vibration at all! In normal light, the electric field vibrates in planes which are perpendicular to the direction that the wave is moving. In polarised light, the electric field vibrates in only one plane which is perpendicular to the direction that the wave is moving.. (3 dimension has been considered in the answer; this is why plane(s) have been used in the answer)
Why call light as E M wave which is not having neither electric nor magnet?
Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.
What are polarized LEDs?
direction of oscillation of electric field relative to direction of motion:verticalhorizontalcircular clockwisecircular counterclockwiseany combination of above
Why light is characterized by electric vector although it also possesses the magnetic vector?
It can probably be characterized by any of the two - the electric vector, or the magnetic vector.
Does light produce both electric and magnetic field?
light exhibit magnetic field but i cant say about electric Field...
Is intensity of light scalar or vector quantity?
I think light could not be recoginzed as a vector. However, I think the light intensity could be devided into the x-y axises.
What is the Difference between plane of polarization and plane of vibration?
A plane including the direction of light propagation and the direction of electric field is called the "plane of vibration". The "plane of polarization" is a confinement of the electric/magnetic field vector to a given plane along the direction of propagation.
What is the light that passes through a polarizing filter?
Polarised light!
Do polarized light consists of waves that vibrate in one direction only?
No, it isn't one direction, otherwise there would not have been vibration at all! In normal light, the electric field vibrates in planes which are perpendicular to the direction that the wave is moving. In polarised light, the electric field vibrates in only one plane which is perpendicular to the direction that the wave is moving.. (3 dimension has been considered in the answer; this is why plane(s) have been used in the answer)
How are electromagnetic waves formed?
they are formed when a electric field and a magnetic field couple. When ever a charged particle undergoes an acceleration it emits electromagnetic radiation. Therefore when an electron 'jumps' from a high energy quantum state to a lower energy quantum state it produces em radiation of a particular frequency. And, more precisely, EM waves are created by accelerating a charge. An electron at rest (or cruising at constant speed) has a stable electric field radiating outwards (really inwards for negative charge). If the electron is accelerated, a ripple in the field radiates outward with the speed of light, with the strongest effect perpendicular to the electron's vector of acceleration and weakest part (zero) along the vector. The electric field fluctuation is in any plane along the vector, and the magnetic part is in the plane perpendicular to that and the vector.
Is polarised light EM or not?
Yes, light is electromagnetic, whether it is polarized or not.
What are the three dimensions of light wave?
The three dimensions are the electric field, the magnetic field and the direction of the light.
Why call light as E M wave which is not having neither electric nor magnet?
Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.Electromagnetic waves, like light, do involve changes in the electric and the magnetic field. These changes propagate at the speed of light - as a wave.
Why is light in the electromagnetic spectrum Is light a type of electromagnetic radiation But how does that work Light is not magnetic or is it?
Part of the electromagnetic spectrum can be detected by eye, and we call that bit "light". The thing about electromagnetic radiation is that a varying magnetic field causes a (varying) electric field (that's how power stations make electric current) and a varying electric field causes a (varying) magnetic field. So electromagnetic radiation is what you get when a varying electric field creates a varying magnetic field which in turn contributes the varying electric field. The whole thing then appears as bundled varying electric and magnetic field wave system which propagates at the velocity of light, That is why it is called electromagnetic. There are no magnetic poles or electric charges in it, and it can travel through a vacuum.
