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Elements Of Remote Sensing

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

Radiometric resolution
Spectral resolution
All of these
Spatial resolution

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

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

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Elements Of Remote Sensing
Which one of the following statements regarding remote sensing is correct?

The interaction of the electromagnetic radiation with the target
Both (A) and (B)
The emission of electromagnetic radiation from the target
Neither (A) nor (B)

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Elements Of Remote Sensing
If θ is the angle of scan measured from the nadir, the ground distance swept by the sensor IFOV is proportional to:

sec²θ
cos²θ
tan²θ
sin²θ

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

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

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

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