Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: Spatial variation Spectral variation Temporal variation None of these Spatial variation Spectral variation Temporal variation None of these 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: Snell's law Fresnel refraction None of these Fresnel reflection Snell's law Fresnel refraction None of these Fresnel reflection ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Geodimeter is based on: Propagation of infrared radiation Propagation of modulated light waves The visible light as carrier with frequency of the order of 5 × 1014 Hz High frequency radio waves Propagation of infrared radiation Propagation of modulated light waves The visible light as carrier with frequency of the order of 5 × 1014 Hz High frequency radio waves 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 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 ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing If electric permittivity and magnetic permeability of the medium are respectively ‘ε’ and ‘μ’, then the velocity (Cm) of the electromagnetic wave in the medium is given by: Cm = 5/√εμ Cm = 1/√8 μ Cm = 1/εμ None of these Cm = 5/√εμ Cm = 1/√8 μ Cm = 1/εμ None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The code based GPS receivers are generally used for: Trans movement Vehicle tracking Land navigation All of these Trans movement Vehicle tracking Land navigation All of these ANSWER DOWNLOAD EXAMIANS APP
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