Elements Of Remote Sensing
A perfectly black body:

Is a diffuse emitter
All listed here
Absorbs all the radiations of every wave lengths
Emits power of every wave length

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Elements Of Remote Sensing
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
All of these
The radiant energy which falls upon a surface is termed as irradiance

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Elements Of Remote Sensing
Earth observations from a satellite platform provide:

Synoptic view of a large area
Repetitive observations of the same area with intervals of a few minutes to a few weeks
All of these
Constant solar zenith angles and similar illumination conditions

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