Elements Of Remote Sensing Remote sensing techniques make use of the properties of ___________ emitted, reflected or diffracted by the sensed objects: Wind waves Sound waves Electromagnetic waves Electric waves Wind waves Sound waves Electromagnetic waves Electric waves 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 The maximum sun's radiation occurs around: 0.55 μ wave length None of these 0.4 μm wave length 0.7 μ wave length 0.55 μ wave length None of these 0.4 μm wave length 0.7 μ wave length ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following statements is correct regarding the GPS satellites? The inclination of axis satellite is 55° All of these The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz) The nominal altitude is about 20,200 km The inclination of axis satellite is 55° All of these The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz) The nominal altitude is about 20,200 km ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing While propagating through homogeneous, isotropic media, 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 Neither (A) nor (B) Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing A passive sensor uses: Flash light as a source of energy Its own source of energy None of these Sun as the source of energy Flash light as a source of energy Its own source of energy None of these Sun as the source of energy ANSWER DOWNLOAD EXAMIANS APP
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