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 Active sensors None of these Sensors Passive sensors Active sensors None of these Sensors ANSWER DOWNLOAD EXAMIANS APP
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 Which one of the following statements regarding remote sensing is correct? Both (A) and (B) The interaction of the electromagnetic radiation with the target The emission of electromagnetic radiation from the target Neither (A) nor (B) Both (A) and (B) The interaction of the electromagnetic radiation with the target The emission of electromagnetic radiation from the target Neither (A) nor (B) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing In the given figure the phase of Trough C is 3π/2 Crest A is π/2 All of these B crossing is π Trough C is 3π/2 Crest A is π/2 All of these B crossing is π ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following factors does not affect the scale of the air photographs? Focal length None of these Ground elevation Flying height Focal length None of these Ground elevation Flying height ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Coherence of two electromagnetic waves takes place if their phase difference is: Constant in time and space Constant in time Constant in space None of these Constant in time and space Constant in time Constant in space None of these ANSWER DOWNLOAD EXAMIANS APP
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