Elements Of Remote Sensing
Spatial variation in horizontal and vertical directions is caused due to:

Chemical weathering of rocks
All of these
Biological weathering of rocks
Physical weathering of rocks

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Elements Of Remote Sensing
Which one of the following residual biases involves the GPS accuracy?

All listed here
Satellite dependent biases due to uncertainty in the orbital parameters of the satellite
Signal propagation biases due to the sphere and troposphere propagation
Receiver-dependent biases due to clock stability with line

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Elements Of Remote Sensing
Which one of the following statement is incorrect regarding the electromagnetic radiation?

These are produced by the motion of electric charge
None of these
The oscillation of charged particles sets up changing electric fields
The changing electric fields induce the changing magnetic fields in the surrounding medium

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

All of these
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

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

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

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