Elements Of Remote Sensing
The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called:

Temporal variation
None of these
Spectral variation
Spatial variation

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

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
All of these
Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation

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