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: None of these Sensors Passive sensors Active sensors None of these Sensors Passive sensors Active sensors ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following parameters is accurate for DGPS? Positional accuracies ~ 5 - 10 m if rover is less than 25 km Positional accuracies ~ 1 - 2 m if rover is less than 1-2 km from the reference station Positional accuracies ~ 2 - 5 m if rover is less than 2-5 km from the reference station Positional accuracies ~ 5 - 10 m if rover is less than 5-10 km from reference station Positional accuracies ~ 5 - 10 m if rover is less than 25 km Positional accuracies ~ 1 - 2 m if rover is less than 1-2 km from the reference station Positional accuracies ~ 2 - 5 m if rover is less than 2-5 km from the reference station Positional accuracies ~ 5 - 10 m if rover is less than 5-10 km from reference station ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing While propagating through homogeneous, isotropic media, Neither (A) nor (B) Both the fields are at right angles to the direction of propagation Both (A) and (B) Directions of both the fields are orthogonal Neither (A) nor (B) Both the fields are at right angles to the direction of propagation Both (A) and (B) Directions of both the fields are orthogonal 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 = vλ C = v + λ C = 1/λv C = λ/v C = vλ C = v + λ C = 1/λv C = λ/v ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The infrared portion of EMR lies between 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 0.7 - 1.3 μm 0.4 - 0.7 μm 0.7 to 14 μm ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: Spectral variation None of these Temporal variation Spatial variation Spectral variation None of these Temporal variation Spatial variation ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS