QWhat is the difference between Infrared frequency and radio frequency ?

Question

ZEN Technologies,

B-42 building,

Sanathnagar,

Hyd-500018.

Answer 1

Radio frequency (RF) is a frequency or rate of oscillation within the range of about 3 Hz to 300 GHz. This range corresponds to frequency of alternating current electrical signals used to produce and detect radio waves. Since most of this range is beyond the vibration rate that most mechanical systems can respond to, RF usually refers to oscillations in electrical circuits or electromagnetic radiation.

Infrared (IR) radiation is electromagnetic radiation whose wavelength is longer than that of visible light, but shorter than that of terahertz radiation and microwaves. The name means "below red" (from the Latin infra, "below"), red being the color of visible light with the longest wavelength. Infrared radiation has wavelengths between about 750 nm and 1 mm, spanning three orders of magnitude. Humans at normal body temperature can radiate at a wavelength of 10 microns.[

Answer 2

Radio frequency spreads in the air in long circle.while Infrared frequency consist of hot rays.It spreads in about 5 to 11 feet.