Elements Of Remote Sensing
Electromagnetic radiation:

All of these
Is capable to travel across space
Once generated, remains self-propagating
Produces a time varying magnetic field and vice versa

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

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

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