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Elements Of Remote Sensing

Elements Of Remote Sensing
The object of photo-interpretation is:

All of these
Identification
Recognition of objects
Judging the significance of objects

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

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Elements Of Remote Sensing
Which one of the following quantities forms the basis of radiometry?

Radiant flux (φ)
Radiant intensity (I)
Radiant energy (Q)
All of these

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Elements Of Remote Sensing
The refractive index of the ocean water:

Decreases with temperature
Increases with temperature
Decreases with salinity
Increases with salinity

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Elements Of Remote Sensing
The most widely used antenna in GPS is

Slotted antenna
Microstrip antenna
Horn antenna
Parabolic antenna

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Elements Of Remote Sensing
A passive sensor uses:

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

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