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Elements Of Remote Sensing

Elements Of Remote Sensing
The basic requirement of any sensor system is:

Spatial resolution
Radiometric resolution
All of these
Spectral resolution

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Elements Of Remote Sensing
Pick up the important characteristic of a target which facilitates its identification from the following:

Spatial variation
Temporal variation
All of these
Spectral variation

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Elements Of Remote Sensing
The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called:

Spatial variation
Spectral variation
Temporal variation
None of these

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Elements Of Remote Sensing
The various stages occuring in GPS system are described below:
1. Generation of an output to the user
2. Detection of the GPS signals
3. Processing the data in the built-in-computer
4. Decoding the GPS signal.
The correct sequence of the stages is:

2, 3, 4, 1
1, 2, 3, 4
3, 1, 2, 4
2, 4, 3, 1

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Elements Of Remote Sensing
The coherence length over which there is a strong relationship between amplitudes is;

None of these
The square of the bandwidth
Directly proportional to the bandwidth
Inversely proportional to the bandwidth

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Elements Of Remote Sensing
Coherence of two electromagnetic waves takes place if their phase difference is:

Constant in time and space
None of these
Constant in space
Constant in time

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