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Elements Of Remote Sensing

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

Color
South arrow
Legends
Symbology

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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 reflection
None of these
Fresnel refraction

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Elements Of Remote Sensing
The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called:

Spectral variation
None of these
Temporal variation
Spatial variation

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Elements Of Remote Sensing
The infrared portion of EMR lies between

0.4 - 0.7 μm
0.7 to 14 μm
0.5 mm to 1 μm
0.7 - 1.3 μm

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Elements Of Remote Sensing
The altitudinal distance of a geostationary satellite from the earth is about:

44,000 km
30,000 km
26,000 km
36,000 km

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Elements Of Remote Sensing
The refractive index of the ocean water:

Decreases with salinity
Increases with salinity
Increases with temperature
Decreases with temperature

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