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

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

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

The layers of the soil parallel to the earth surface are called horizons
The transitional layer between two adjoining horizons is called boundary
The vertical section of the soil extending into the parent material, is called profile
All of these

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

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Elements Of Remote Sensing
Which one of the following parameters is accurate for DGPS?

Positional accuracies ~ 5 - 10 m if rover is less than 5-10 km from reference station
Positional accuracies ~ 2 - 5 m if rover is less than 2-5 km from the reference station
Positional accuracies ~ 1 - 2 m if rover is less than 1-2 km from the reference station
Positional accuracies ~ 5 - 10 m if rover is less than 25 km

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