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Elements Of Remote Sensing

Elements Of Remote Sensing
The reflectance from a surface is called specular reflection if it follows:

Planktan
Snell’s law
All of these
Lambert

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Elements Of Remote Sensing
In case of reflection and refraction of electromagnetic radiation,

Angle of incidence = angle of reflection
Angle of refraction = sum of the angles of incidence and refraction
All listed here
Angle of incidence = angle of refraction

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Elements Of Remote Sensing
The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called:

Passive remote sensing
Neutral remote sensing
Active remote sensing
None of these

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Elements Of Remote Sensing
The various stages occuring in GPS system are described below: 1. Generation of an output to the user 2. Detection of the GPS signals 3. Processing the data in the built-in-computer 4. Decoding the GPS signal.The correct sequence of the stages is:

2, 3, 4, 1
3, 1, 2, 4
1, 2, 3, 4
2, 4, 3, 1

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Elements Of Remote Sensing
Which one of the following frequency regions is a part of sun's radiation?

All of these
Ultraviolet frequency region
Infrared frequency region
Radio frequency region

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Elements Of Remote Sensing
Consider the following statements regarding the satellite imaging:
1. The satellite orbit is fixed in the inertial space
2. During successive across-track imaging, the earth rotates beneath the sensor
3. The satellite images a skewed area
Which one of the following statements is/are correct?

1, 2, 3
2, 3
1, 3
1, 2

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