Elements Of Remote Sensing
The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called:

None of these
Active remote sensing
Neutral remote sensing
Passive remote sensing

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Elements Of Remote Sensing
Pick up the correct definition from the following with response to GIS.

The geometric property which describes the linkage between line features is defined as connectivity
The area features which are wholly contained within another area feature, is known so containment
All of these
Common boundary between two areas of a locality is known as adjacency

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Elements Of Remote Sensing
The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,

Increases both the contrast and sharpness
Increases the contrast of the image but reduces the sharpness
Reduces the contrast of the image and also its sharpness
Reduces the contrast but increases the sharpness

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