Elements Of Remote Sensing Remote sensing techniques make use of the properties of ___________ emitted, reflected or diffracted by the sensed objects: Sound waves Electric waves Wind waves Electromagnetic waves Sound waves Electric waves Wind waves Electromagnetic waves ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called: Spectral variation None of these Spatial variation Temporal variation Spectral variation None of these Spatial variation Temporal variation ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing "An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as: Fresnel refraction Snell's law Fresnel reflection None of these Fresnel refraction Snell's law Fresnel reflection None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Formation of snow occurs if the cloud temperature is Below the freezing point None of these At the freezing point Just above the freezing point Below the freezing point None of these At the freezing point Just above the freezing point 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); 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 Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: Spectral variation None of these Spatial variation Temporal variation Spectral variation None of these Spatial variation Temporal variation ANSWER DOWNLOAD EXAMIANS APP
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