Elements Of Remote Sensing
Electromagnetic radiation:

Once generated, remains self-propagating
All of these
Produces a time varying magnetic field and vice versa
Is capable to travel across space

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

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Elements Of Remote Sensing
‘A’ and ‘B’ are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?

Height displacement of A and B is equal
Height displacement of A and B will be towards each other
Height displacement of A will be less than that of B
Height displacement of B will be less than that of A

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