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 Active sensors Sensors None of these Passive sensors Active sensors Sensors None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n₁) on another medium (refractive index m₂); Both (A) and (B) The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi Neither (A) nor (B) The angle of incidence is equal to the angle of refraction Both (A) and (B) The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi Neither (A) nor (B) The angle of incidence is equal to the angle of refraction ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following parameters is considered to determine the reflectance of a vegetation canopy? Solar zenith angle All of these Look angle Azimuth angle Solar zenith angle All of these Look angle Azimuth angle ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Geodimeter is based on: The visible light as carrier with frequency of the order of 5 × 1014 Hz Propagation of modulated light waves High frequency radio waves Propagation of infrared radiation The visible light as carrier with frequency of the order of 5 × 1014 Hz Propagation of modulated light waves High frequency radio waves Propagation of infrared radiation ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The altitudinal distance of a geostationary satellite from the earth is about: 26,000 km 44,000 km 36,000 km 30,000 km 26,000 km 44,000 km 36,000 km 30,000 km ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following statement is incorrect regarding the electromagnetic radiation? None of these The oscillation of charged particles sets up changing electric fields The changing electric fields induce the changing magnetic fields in the surrounding medium These are produced by the motion of electric charge None of these The oscillation of charged particles sets up changing electric fields The changing electric fields induce the changing magnetic fields in the surrounding medium These are produced by the motion of electric charge ANSWER DOWNLOAD EXAMIANS APP
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