Elements Of Remote Sensing
The remote sensing techniques applied for the earth's surface features, is generally confined to the following wave lengths:

All of these
2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm
0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm
4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm

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Elements Of Remote Sensing
Due to scan geometry of a satellite sensor:

All of these
The ground distance swept by the senor, IFOV is proportional to sec2θ, where θ is the angle of scan measured from the nadir
The details towards the edge of the scan get compressed
The off-nadir resolution is degraded

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Elements Of Remote Sensing
‘A’ and ‘B’ are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?

Height displacement of A and B will be towards each other
Height displacement of B will be less than that of A
Height displacement of A will be less than that of B
Height displacement of A and B is equal

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