Elements Of Remote Sensing Critical angle of electromagnetic radiation takes place if Angle of refraction is equal to 90° Angle of incidence is equal to 90° Angle of incidence is greater than the angle of refraction Angle of incidence is equal to angle of refraction Angle of refraction is equal to 90° Angle of incidence is equal to 90° Angle of incidence is greater than the angle of refraction Angle of incidence is equal to angle of refraction ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing A passive sensor uses: Its own source of energy Flash light as a source of energy Sun as the source of energy None of these Its own source of energy Flash light as a source of energy Sun as the source of energy None of these 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 Active sensors Sensors None of these Passive sensors Active sensors Sensors None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Spatial variation in horizontal and vertical directions is caused due to: Physical weathering of rocks All of these Biological weathering of rocks Chemical weathering of rocks Physical weathering of rocks All of these Biological weathering of rocks Chemical weathering of rocks ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The infrared portion of EMR lies between 0.7 - 1.3 μm 0.4 - 0.7 μm 0.7 to 14 μm 0.5 mm to 1 μm 0.7 - 1.3 μm 0.4 - 0.7 μm 0.7 to 14 μm 0.5 mm to 1 μm ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Earth observations from a satellite platform provide: Constant solar zenith angles and similar illumination conditions Repetitive observations of the same area with intervals of a few minutes to a few weeks All of these Synoptic view of a large area Constant solar zenith angles and similar illumination conditions Repetitive observations of the same area with intervals of a few minutes to a few weeks All of these Synoptic view of a large area ANSWER DOWNLOAD EXAMIANS APP
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