Elements Of Remote Sensing Which one of the following parameters is considered to determine the reflectance of a vegetation canopy? Azimuth angle All of these Solar zenith angle Look angle Azimuth angle All of these Solar zenith angle Look angle 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 A perfectly black body: Emits power of every wave length Absorbs all the radiations of every wave lengths All listed here Is a diffuse emitter Emits power of every wave length Absorbs all the radiations of every wave lengths All listed here Is a diffuse emitter ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings). h > λ/8 cos θ h > λ/Δ cos θ h = λ/8 cos θ h < λ/8 cos θ h > λ/8 cos θ h > λ/Δ cos θ h = λ/8 cos θ h < λ/8 cos θ ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing While propagating through homogeneous, isotropic media, Both the fields are at right angles to the direction of propagation Neither (A) nor (B) Directions of both the fields are orthogonal Both (A) and (B) Both the fields are at right angles to the direction of propagation Neither (A) nor (B) Directions of both the fields are orthogonal Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: None of these Spatial variation Temporal variation Spectral variation None of these Spatial variation Temporal variation Spectral variation ANSWER DOWNLOAD EXAMIANS APP
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