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Elements Of Remote Sensing

Elements Of Remote Sensing
Which one of the following geometric errors of satellite sensors is random?

Scan skew
Panoramic distortion
Altitude variation
Earth rotation

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Elements Of Remote Sensing
Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings).

h = λ/8 cos θ
h < λ/8 cos θ
h > λ/Δ cos θ
h > λ/8 cos θ

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Elements Of Remote Sensing
The code based GPS receivers are generally used for:

Trans movement
All of these
Vehicle tracking
Land navigation

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Elements Of Remote Sensing
For interpolation of satellite data used for monitoring dynamic changes that occurs on the earth surface, the most suitable orbit for the satellite is:

None of these
Near polar orbit
Sun-synchronous orbit
Circular orbit

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Elements Of Remote Sensing
Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena:

Vegetative cover
Snow cover
Cloud evolution
All of these

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Elements Of Remote Sensing
If electric permittivity and magnetic permeability of the medium are respectively ‘ε’ and ‘μ’, then the velocity (Cm) of the electromagnetic wave in the medium is given by:

Cm = 1/√8 μ
None of these
Cm = 5/√εμ
Cm = 1/εμ

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