Not exactly. Different colors are different frequencies of light. "Spectrum", on the other hand, refers to an analysis of a mix of wavelengths.
Infrared radiation is generated when an object's atoms and molecules vibrate due to heat, causing them to emit electromagnetic waves in the infrared spectrum. This radiation is produced by any object warmer than absolute zero, as thermal energy causes the atoms and molecules to move and generate electromagnetic waves.
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Fraunhofer lines in the Sun's electromagnetic spectrum are caused by the absorption of specific wavelengths of light by elements in the Sun's atmosphere. These elements absorb light at certain frequencies, creating dark lines in the spectrum that help scientists identify the composition of the Sun.
Ultraviolet radiation does that.
Yes. UV radiation causes phosphor to fluoresce in fluorescent light bulbs.
electricity causes an electromagnetic field, also radiation.
Objects that absorb electromagnetic radiation receive energy from the radiation in the form of heat. This increase in energy causes the atoms and molecules in the object to vibrate, which we perceive as an increase in temperature.
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.
Nuclear fusion within the Sun causes it to give off infared radiation and electromagnetic radiation.
Do you mean 'Which electromagnetic wave in the electromagnetic spectrum causes sunburn? The answer is Ultraviolet (UV), which is what is used in sunbeds and therefore damages and colours your skin cells.
Electromagnetic radiation changes its wavelengths when it interacts with matter due to phenomenon such as absorption, reflection, or scattering. These interactions can cause the radiation to lose or gain energy, resulting in a shift in wavelength.
The electromagnetic radiation most capable of ionizing is the radiation with the highest energy per quantum. That in turn implies the radiation with the highest frequency (shortest wavelength). The highest-energy end of the electromagnetic spectrum is the region we call "gamma rays". We can't generate these, and the gamma rays we observe all originate in radioactive nuclear processes.