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Civil Engineering - Elements of Remote Sensing - Discussion

Discussion Forum : Elements of Remote Sensing - Section 2 (Q.No. 43)
Elements of Remote Sensing
43.
Which one of the following statement is correct ?
Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation
The rate of transfer of radiant energy is called flux and is expressed in watts.
The radiant energy which falls upon a surface, is termed as irradiance.
The radiant energy which falls away from the surface is termed as radient exitance and is measured in Wm-2
All of these
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