ELEMENTS OF REMOTE SENSING QUIZ

The maximum sun's radiation occurs around:

0.55 μ wave length

None of these

0.7 μ wave length

0.4 μm wave length

TRUE ANSWER : ?
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The remote sensing techniques applied for the earth's surface features, is generally confined to the following wave lengths:

All of these

4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm

0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm

2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm

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Crop Acreage and Production Estimation (CAPE) was funded and taken up in 1983 by:

India

European Union

Russia

USA

TRUE ANSWER : ?
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Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena:

Snow cover

Cloud evolution

Vegetative cover

All of these

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The normal altitude of GPS satellite is about

16,200 km

36,100 km

24,400 km

20,200 km

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The basic requirement of any sensor system is:

Spectral resolution

All of these

Radiometric resolution

Spatial resolution

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The object of photo-interpretation is:

Identification

Recognition of objects

All of these

Judging the significance of objects

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The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called:

Passive sensors

Sensors

None of these

Active sensors

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Critical angle of electromagnetic radiation takes place if

Angle of refraction is equal to 90°

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°

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In case of reflection and refraction of electromagnetic radiation,

Angle of refraction = sum of the angles of incidence and refraction

Angle of incidence = angle of reflection

Angle of incidence = angle of refraction

All listed here

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