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Elements Of Remote Sensing

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

Snell’s law
Lambert
Planktan
All of these

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

Orbit drift
Altitude variation
Altitude
All of these

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Elements Of Remote Sensing
Due to perturbation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its

Six ground stations
Four ground stations
Three ground stations
Five ground stations

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Elements Of Remote Sensing
DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within

25 km
75 km
50 km
100 km

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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:

Fresnel refraction
Fresnel reflection
None of these
Snell's law

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

16
24
8
12

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