Elements Of Remote Sensing
Which one of the following statement is correct?

The radiant energy which falls upon a surface is termed as irradiance
Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation
All of these
The rate of transfer of radiant energy is called flux and is expressed in watts

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Elements Of Remote Sensing
Which one of the following statements is correct regarding the GPS satellites?

All of these
The nominal altitude is about 20,200 km
The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)
The inclination of axis satellite is 55°

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

The off-nadir resolution is degraded
All of these
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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