Elements Of Remote Sensing The altitudinal distance of a geostationary satellite from the earth is about: 44,000 km 26,000 km 36,000 km 30,000 km 44,000 km 26,000 km 36,000 km 30,000 km ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: Temporal variation Spectral variation None of these Spatial variation Temporal variation Spectral variation None of these Spatial variation ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following statement is incorrect regarding the electromagnetic radiation? None of these These are produced by the motion of electric charge The oscillation of charged particles sets up changing electric fields The changing electric fields induce the changing magnetic fields in the surrounding medium None of these These are produced by the motion of electric charge The oscillation of charged particles sets up changing electric fields The changing electric fields induce the changing magnetic fields in the surrounding medium ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following relationship between the wave length (λ), and frequency and the speed (C) of the electromagnetic wave is correct? C = 1/λv C = vλ C = v + λ C = λ/v C = 1/λv C = vλ C = v + λ C = λ/v ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Critical angle of electromagnetic radiation takes place if Angle of incidence is equal to angle of refraction Angle of incidence is greater than the angle of refraction Angle of refraction is equal to 90° Angle of incidence is equal to 90° Angle of incidence is equal to angle of refraction Angle of incidence is greater than the angle of refraction Angle of refraction is equal to 90° Angle of incidence is equal to 90° 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) Neither (A) nor (B) The angle of incidence is equal to the angle of refraction The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi Both (A) and (B) Neither (A) nor (B) The angle of incidence is equal to the angle of refraction The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi ANSWER DOWNLOAD EXAMIANS APP
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