Coherence of two electromagnetic waves takes place if their phase difference is: Constant in time Constant in space None of these Constant in time and space TRUE ANSWER : ? YOUR ANSWER : ?
The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called: Temporal variation Spatial variation None of these Spectral variation TRUE ANSWER : ? YOUR ANSWER : ?
The various stages occuring in GPS system are described below:<br/>1. Generation of an output to the user<br/>2. Detection of the GPS signals<br/>3. Processing the data in the built-in-computer<br/>4. Decoding the GPS signal.<br/>The correct sequence of the stages is: 1, 2, 3, 4 3, 1, 2, 4 2, 3, 4, 1 2, 4, 3, 1 TRUE ANSWER : ? YOUR ANSWER : ?
For interpolation of satellite data used for monitoring dynamic changes that occurs on the earth surface, the most suitable orbit for the satellite is: Sun-synchronous orbit None of these Near polar orbit Circular orbit TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following factors does not affect the scale of the air photographs? None of these Flying height Focal length Ground elevation TRUE ANSWER : ? YOUR ANSWER : ?
The optical property of a water body depends on: Absorption by the suspended particulate matter Scattering by the suspended particulate matter Absorption by the dissolved material All of these TRUE ANSWER : ? YOUR ANSWER : ?
"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 Fresnel reflection Fresnel refraction Snell's law TRUE ANSWER : ? YOUR ANSWER : ?
The reflection of solar energy is characterized by the water content in the leaf, in the reflective optical infrared: Visible (0.4 - 0.7 μm) region None of these Short wave-IR (1.3 - 2.7 μm) region Near-IR (0.7 - 1.3 μm) region TRUE ANSWER : ? YOUR ANSWER : ?
In GPS, receivers are used are; Mechanical clocks Quartz clocks Atomic clocks Electronic clocks TRUE ANSWER : ? YOUR ANSWER : ?
Crop Acreage and Production Estimation (CAPE) was funded and taken up in 1983 by: European Union Russia USA India TRUE ANSWER : ? YOUR ANSWER : ?