Elements Of Remote Sensing
The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:

Black hole
Ozone window
Atmospheric window
Ozone hole

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

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Elements Of Remote Sensing
Which one of the following residual biases involves the GPS accuracy?

Signal propagation biases due to the sphere and troposphere propagation
Satellite dependent biases due to uncertainty in the orbital parameters of the satellite
All listed here
Receiver-dependent biases due to clock stability with line

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