The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called: Sensors None of these Passive sensors Active sensors TRUE ANSWER : ? YOUR ANSWER : ?
The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called: Passive remote sensing Active remote sensing Neutral remote sensing None of these TRUE ANSWER : ? YOUR ANSWER : ?
The entire range of the electromagnetic spectrum spans a large spectrum of wave lengths varying from: 10-8 to 106 m 10-8 to 108 m 10-10 to 106 m 10-10 to 1010 m TRUE ANSWER : ? YOUR ANSWER : ?
Pick up the important characteristic of a target which facilitates its identification from the following: Spatial variation Spectral variation All of these Temporal variation TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following residual biases involves the GPS accuracy? Receiver-dependent biases due to clock stability with line Satellite dependent biases due to uncertainty in the orbital parameters of the satellite Signal propagation biases due to the sphere and troposphere propagation All listed here TRUE ANSWER : ? YOUR ANSWER : ?
The code based GPS receivers are generally used for: Land navigation Vehicle tracking Trans movement All of these TRUE ANSWER : ? YOUR ANSWER : ?
Due to scan geometry of a satellite sensor: All of these The ground distance swept by the senor, IFOV is proportional to sec2θ, where θ is the angle of scan measured from the nadir The off-nadir resolution is degraded The details towards the edge of the scan get compressed TRUE ANSWER : ? YOUR ANSWER : ?
Earth observations from a satellite platform provide: Synoptic view of a large area Repetitive observations of the same area with intervals of a few minutes to a few weeks Constant solar zenith angles and similar illumination conditions All of these TRUE ANSWER : ? YOUR ANSWER : ?
The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is : 16 12 8 24 TRUE ANSWER : ? YOUR ANSWER : ?