Elements Of Remote Sensing A perfectly black body: Is a diffuse emitter Absorbs all the radiations of every wave lengths All listed here Emits power of every wave length Is a diffuse emitter Absorbs all the radiations of every wave lengths All listed here Emits power of every wave length ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following quantities forms the basis of radiometry? Radiant energy (Q) Radiant intensity (I) All of these Radiant flux (φ) Radiant energy (Q) Radiant intensity (I) All of these Radiant flux (φ) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: Temporal variation Spatial variation Spectral variation None of these Temporal variation Spatial variation Spectral variation None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing ‘A’ and ‘B’ are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct? Height displacement of B will be less than that of A Height displacement of A and B is equal Height displacement of A will be less than that of B Height displacement of A and B will be towards each other Height displacement of B will be less than that of A Height displacement of A and B is equal Height displacement of A will be less than that of B Height displacement of A and B will be towards each other ANSWER DOWNLOAD EXAMIANS APP
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: Passive sensors Sensors None of these Active sensors Passive sensors Sensors None of these Active sensors ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following errors is produced by platform characteristics of the sensor? Altitude Altitude variation Orbit drift All of these Altitude Altitude variation Orbit drift All of these ANSWER DOWNLOAD EXAMIANS APP