Elements Of Remote Sensing
Pick up the important characteristic of a target which facilitates its identification from the following:

All of these
Temporal variation
Spatial variation
Spectral variation

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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,

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

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Elements Of Remote Sensing
Which one of the following statements is correct regarding the GPS satellites?

The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)
The nominal altitude is about 20,200 km
The inclination of axis satellite is 55°
All of these

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