Earth does not emit light because if it did we would be a star, comit, or our own sun, and we would be made of hydrogen and helium like other stars and comits. i am no expert but my studies show the previous information.
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You are right that only stars can emit light, but a comet (not "comit") is just like an asteroid or planet in being visible only because it reflects the light from the star it orbits.
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.
Visible light can't move a compass needle because light consists of electromagnetic waves, while a compass needle is affected by the Earth's magnetic field. The magnetic field from visible light is not strong enough to influence the orientation of a compass needle.
Electromagnetic waves are self-propagating disturbances in electric and magnetic fields. These fields are intimately connected by Maxwell's equations, which show that changes in one field generate the other. The speed of light emerges as a fundamental property of these two fields, and thus electromagnetic waves travel at the speed of light in a vacuum.
When a light wave is emitted from a flashlight or a candle, the medium that is disturbed is the electromagnetic field. Light is an electromagnetic wave that consists of oscillating electric and magnetic fields propagating through space.
The field is called "electromagnetic radiation" or "EMR." It encompasses the study of all types of electromagnetic radiation, including visible light, x-rays, gamma rays, and ultraviolet radiation.
As light can also travel in vacuum so no extra force can change its direction.
Since light can't be affected from any electromagnetic field, then sure!
An electromagnetic wave is a form of radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge. An electromagnetic wave travels like any other form of radiation or light, except for the fact that an electromagnetic wave moves perpendicular to an electric field and a magnetic field.
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.
It is not very clear what the question means. Light is an electromagnetic field and it can propagate in a vacuum. Propagation of a beam of light is unaffected by any other electromagnetic fields in its path.
Light is an oscillation of the electromagnetic (photon) field.
An electromagnetic field consists of both an electric field and a magnetic field, which are interconnected and interact with each other. This field is generated by the movement of electrically charged particles and is fundamental to the behavior of light and other electromagnetic radiation.
Visible light is a type of electromagnetic wave.
Visible light can't move a compass needle because light consists of electromagnetic waves, while a compass needle is affected by the Earth's magnetic field. The magnetic field from visible light is not strong enough to influence the orientation of a compass needle.
Electromagnetic waves (including light); solar wind.
Nothing I know of but an "electromagnetic field" is a field with one axis the electrical one and another axis the magnetic one and a third axis of spacetime. Light is an electromagnetic field phenomenon.
Electromagnetic radiation is just light. You can measure light with a light meter, which tells you intensity, or a camera sensitive to different frequencies. You can also use a magnetometer (Gaussmeter) to measure the B field component or a voltmeter to measure the E field component.