Elements Of Remote Sensing Critical angle of electromagnetic radiation takes place if Angle of incidence is equal to angle of refraction Angle of incidence is equal to 90° Angle of refraction 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 incidence is equal to 90° Angle of refraction is equal to 90° Angle of incidence is greater than the angle of refraction 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 None of these Sensors Active sensors Passive sensors None of these Sensors Active sensors ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Coherence of two electromagnetic waves takes place if their phase difference is: Constant in time Constant in time and space Constant in space None of these Constant in time Constant in time and space Constant in space None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The basic requirement of any sensor system is: Spatial resolution Radiometric resolution All of these Spectral resolution Spatial resolution Radiometric resolution All of these Spectral resolution ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The remote sensing techniques applied for the earth's surface features, is generally confined to the following wave lengths: 2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm 4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm All of these 2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm 4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm All of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following relationship between the wave length (λ), and frequency and the speed (C) of the electromagnetic wave is correct? C = λ/v C = vλ C = v + λ C = 1/λv C = λ/v C = vλ C = v + λ C = 1/λv ANSWER DOWNLOAD EXAMIANS APP
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