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Elements Of Remote Sensing

Elements Of Remote Sensing
Which one of the following attributes is not associated with digital maps

Symbology
Color
Legends
South arrow

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Elements Of Remote Sensing
Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings).

h > λ/8 cos θ
h > λ/Δ cos θ
h < λ/8 cos θ
h = λ/8 cos θ

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Elements Of Remote Sensing
A passive sensor uses:

Flash light as a source of energy
Sun as the source of energy
Its own source of energy
None of these

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Elements Of Remote Sensing
The code based GPS receivers are generally used for:

Trans movement
Land navigation
Vehicle tracking
All of these

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Elements Of Remote Sensing
If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height

h = (H/B) dp
h = dp/(H/B)
h = (B/H) dp
h = dp/(B/H)

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

Spectral resolution
Spatial resolution
Radiometric resolution
All of these

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