Correct Answer : Wavelength
Explanation : The wavelength of a wave is the distance the wave travels in one cycle. The wavelength of a signal is represented by the Greek letter λ (lambda) and has the same units as length.
Correct Answer : Option (D) : 1477.8Mhz
Explanation : Wavelength =8 in.= 0.203 mFrequency = 300/0.203 = 1477.8Mhz.
Correct Answer : Option (B) : Satellite communication
Explanation : SHFs or Super High Frequency EM waves are those which lie between the frequency range of 3 to 30GHz range. These microwaves frequencies are widely used in satellite communication and radar.
Correct Answer : Option (B) : Books
Explanation : Infrared radiation is generally associated with heat. Infrared is produced by light bulbs, human bodies, and basically any physical equipment that generates heat.
