Elements Of Remote Sensing Which one of the following quantities forms the basis of radiometry? All of these Radiant flux (φ) Radiant intensity (I) Radiant energy (Q) All of these Radiant flux (φ) Radiant intensity (I) Radiant energy (Q) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Coherence of two electromagnetic waves takes place if their phase difference is: Constant in time None of these Constant in space Constant in time and space Constant in time None of these Constant in space Constant in time and space 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: 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 2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing While propagating through homogeneous, isotropic media, Directions of both the fields are orthogonal Both the fields are at right angles to the direction of propagation Both (A) and (B) Neither (A) nor (B) Directions of both the fields are orthogonal Both the fields are at right angles to the direction of propagation Both (A) and (B) Neither (A) nor (B) ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Due to scan geometry of a satellite sensor: 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 The off-nadir resolution is degraded The details towards the edge of the scan get compressed ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target, Increases the contrast of the image but reduces the sharpness Increases both the contrast and sharpness Reduces the contrast but increases the sharpness Reduces the contrast of the image and also its sharpness Increases the contrast of the image but reduces the sharpness Increases both the contrast and sharpness Reduces the contrast but increases the sharpness Reduces the contrast of the image and also its sharpness ANSWER DOWNLOAD EXAMIANS APP
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