Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: Spectral variation Temporal variation Spatial variation None of these Spectral variation Temporal variation Spatial variation None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Due to perturbation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its Five ground stations Three ground stations Six ground stations Four ground stations Five ground stations Three ground stations Six ground stations Four ground stations ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Due to scan geometry of a satellite sensor: All of these The ground distance swept by the senor, IFOV is proportional to sec2θ, where θ is the angle of scan measured from the nadir The off-nadir resolution is degraded The details towards the edge of the scan get compressed All of these The ground distance swept by the senor, IFOV is proportional to sec2θ, where θ is the angle of scan measured from the nadir The off-nadir resolution is degraded The details towards the edge of the scan get compressed 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); The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi Both (A) and (B) The angle of incidence is equal to the angle of refraction Neither (A) nor (B) The angle of refraction (θr) is given by sin θ₂ = (n₁/n₂) sin θi Both (A) and (B) The angle of incidence is equal to the angle of refraction Neither (A) nor (B) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing While propagating through homogeneous, isotropic media, Neither (A) nor (B) Both (A) and (B) Directions of both the fields are orthogonal Both the fields are at right angles to the direction of propagation Neither (A) nor (B) Both (A) and (B) Directions of both the fields are orthogonal Both the fields are at right angles to the direction of propagation ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The remote sensing techniques applied for the earth's surface features, is generally confined to the following wave lengths: 2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm All of these 4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm 2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm All of these 4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm ANSWER DOWNLOAD EXAMIANS APP
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