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Elements Of Remote Sensing

Elements Of Remote Sensing
Which one of the following attributes is not associated with digital maps

South arrow
Legends
Symbology
Color

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Elements Of Remote Sensing
A perfectly black body:

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

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Elements Of Remote Sensing
If electric permittivity and magnetic permeability of the medium are respectively ‘ε’ and ‘μ’, then the velocity (Cm) of the electromagnetic wave in the medium is given by:

Cm = 5/√εμ
Cm = 1/√8 μ
Cm = 1/εμ
None of these

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Elements Of Remote Sensing
Remote sensing techniques make use of the properties of ___________ emitted, reflected or diffracted by the sensed objects:

Electric waves
Electromagnetic waves
Wind waves
Sound waves

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Elements Of Remote Sensing
The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is :

12
24
16
8

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Elements Of Remote Sensing
Which one of the following statements regarding remote sensing is correct?

The interaction of the electromagnetic radiation with the target
Neither (A) nor (B)
Both (A) and (B)
The emission of electromagnetic radiation from the target

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