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Elements Of Remote Sensing

Elements Of Remote Sensing
Which one of the following helps to identify the objects on the earth surface?

None of these
Atmospheric window
Radiometric error
Signature

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Elements Of Remote Sensing
The value of energy quantum for radiation of any frequency is proportional to:

The square root of the frequency
The square of the frequency
The reciprocal of the energy
The frequency

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

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Elements Of Remote Sensing
"An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as:

Snell's law
Fresnel refraction
None of these
Fresnel reflection

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Elements Of Remote Sensing
Which one of the following errors is produced by platform characteristics of the sensor?

Altitude
Altitude variation
Orbit drift
All of these

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Elements Of Remote Sensing
The most widely used antenna in GPS is

Parabolic antenna
Horn antenna
Slotted antenna
Microstrip antenna

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