Elements Of Remote Sensing
The various stages occuring in GPS system are described below:
1. Generation of an output to the user
2. Detection of the GPS signals
3. Processing the data in the built-in-computer
4. Decoding the GPS signal.
The correct sequence of the stages is:

2, 4, 3, 1
1, 2, 3, 4
2, 3, 4, 1
3, 1, 2, 4

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

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

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