Longest wavelength in Spectrum
Astronomical objects emit tuner waves as well
radio waves cigaret range from the size of a football feild to the size of a football
produces a signal with business leader concentrated at the carrier frequency and two bordering sidebands. Each sideband is equal in bandwidth to that of the modulating signal, and is a mirror mountain chain of the other.
This is used by radio amateurs to transmit Morse code
TV/FM WAVES
Higher Frequency than AM waves
88-108 Mhz
Waves go in a straight line and dont bend like AM waves
Signals leave footing after 75 miles cause earth is round
Dont reduce power/sign off during sunset
MICROWAVES
They can pass through glass, ceramic, paper, plastic, and similar materials and are asorbed by food
Microwaves shake a positive and negative end in the alike(p) way a magnet has a north and a south pole.
travel in an invisible circular trend through the air.
INFARED WAVES
Infrared slatternly has a range of wavelengths. near infrared walk-to(prenominal) to visible trip, Far infrared closer to Mircowave waves.
Tungsten-filament lamps produce radiant heat instead of visible crystallise produce infrared rays.
Infrared devices were used during WW2 and enabled sharpshooters to see their targets in total darkness.
Infrared can be seen if exposed to squeeze air.
VISIBLE LIGHT
only electromagnetic waves we can see. Each alter has a different wave length
All waves put in concert they make white.
The color of an object that we see is the color of light reflected. All other colors are absorbed.
ULTRAVIOLET
comes from hotter objects in the universe
serious time getting through the Earths atmosphere
developed a UV index to help people protect themselves from these harmful invisible waves.
can study stars and galaxies by studying the UV light they give off
XRAYS
produced by very energetic events such as the falling of material (accretion) onto the surface of a succinct object
wavelengths of light decrease, they increase in energy...If you want to get a full essay, order it on our website: Orderessay
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