Elements Of Remote Sensing The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called: Sensors None of these Active sensors Passive sensors Sensors None of these Active sensors Passive sensors ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The coherence length over which there is a strong relationship between amplitudes is; Inversely proportional to the bandwidth The square of the bandwidth Directly proportional to the bandwidth None of these Inversely proportional to the bandwidth The square of the bandwidth Directly proportional to the bandwidth None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Pick up the important characteristic of a target which facilitates its identification from the following: All of these Temporal variation Spectral variation Spatial variation All of these Temporal variation Spectral variation Spatial 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 reflection Snell's law None of these Fresnel refraction Fresnel reflection Snell's law None of these Fresnel refraction ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing A perfectly black body: All listed here Is a diffuse emitter Absorbs all the radiations of every wave lengths Emits power of every wave length All listed here Is a diffuse emitter Absorbs all the radiations of every wave lengths Emits power of every wave length ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing If θ is the angle of scan measured from the nadir, the ground distance swept by the sensor IFOV is proportional to: sec²θ cos²θ sin²θ tan²θ sec²θ cos²θ sin²θ tan²θ ANSWER DOWNLOAD EXAMIANS APP
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