Elements Of Remote Sensing The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called: Passive sensors Sensors Active sensors None of these Passive sensors Sensors Active sensors None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as: Black hole Ozone window Ozone hole Atmospheric window Black hole Ozone window Ozone hole Atmospheric window ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Critical angle of electromagnetic radiation takes place if Angle of refraction is equal to 90° Angle of incidence is greater than the angle of refraction Angle of incidence is equal to 90° Angle of incidence is equal to angle of refraction Angle of refraction is equal to 90° Angle of incidence is greater than the angle of refraction Angle of incidence is equal to 90° Angle of incidence is equal to angle of refraction ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The various stages occuring in GPS system are described below: 1. Generation of an output to the user 2. Detection of the GPS signals 3. Processing the data in the built-in-computer 4. Decoding the GPS signal.The correct sequence of the stages is: 3, 1, 2, 4 1, 2, 3, 4 2, 4, 3, 1 2, 3, 4, 1 3, 1, 2, 4 1, 2, 3, 4 2, 4, 3, 1 2, 3, 4, 1 ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height h = (B/H) dp h = (H/B) dp h = dp/(H/B) h = dp/(B/H) h = (B/H) dp h = (H/B) dp h = dp/(H/B) h = dp/(B/H) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The coherence length over which there is a strong relationship between amplitudes is; Inversely proportional to the bandwidth The square of the bandwidth None of these Directly proportional to the bandwidth Inversely proportional to the bandwidth The square of the bandwidth None of these Directly proportional to the bandwidth ANSWER DOWNLOAD EXAMIANS APP
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