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Elements Of Remote Sensing

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

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

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Elements Of Remote Sensing
Critical angle of electromagnetic radiation takes place if

Angle of incidence is greater than the angle of refraction
Angle of incidence is equal to angle of refraction
Angle of incidence is equal to 90°
Angle of refraction is equal to 90°

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

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

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Elements Of Remote Sensing
The infrared portion of EMR lies between

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

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Elements Of Remote Sensing
A passive sensor uses:

None of these
Its own source of energy
Flash light as a source of energy
Sun as the source of energy

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Elements Of Remote Sensing
Spatial variation in horizontal and vertical directions is caused due to:

Chemical weathering of rocks
All of these
Physical weathering of rocks
Biological weathering of rocks

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