Elements Of Remote Sensing The remote sensing techniques applied for the earth's surface features, is generally confined to the following wave lengths: 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm 4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm All of these 2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm 4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm All of these 2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: Spectral variation Temporal variation None of these Spatial variation Spectral variation Temporal variation None of these 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: None of these Snell's law Fresnel refraction Fresnel reflection None of these Snell's law Fresnel refraction Fresnel reflection ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The maximum sun's radiation occurs around: 0.4 μm wave length 0.55 μ wave length 0.7 μ wave length None of these 0.4 μm wave length 0.55 μ wave length 0.7 μ wave length None of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Due to scan geometry of a satellite sensor: The off-nadir resolution is degraded The details towards the edge of the scan get compressed The ground distance swept by the senor, IFOV is proportional to sec2θ, where θ is the angle of scan measured from the nadir All of these The off-nadir resolution is degraded The details towards the edge of the scan get compressed The ground distance swept by the senor, IFOV is proportional to sec2θ, where θ is the angle of scan measured from the nadir All of these ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length loch is: 500 km 130 km 250 km 230 km 500 km 130 km 250 km 230 km ANSWER DOWNLOAD EXAMIANS APP
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