The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called________________?

A. Satellite dependent biases due to uncertainty in the orbital parameters of the satellite
B. Receiver -dependent biases due to clock stability with line
C. Signal propagation biases due to the sphere and troposphere propagation
D. All the above

A. Directly proportional to the bandwidth
B. Inversely proportional to the bandwidth
C. The square of the bandwidth
D. None of these

A. Radiometric resolution
B. Spatial resolution
C. Spectral resolution
D. All of these

A. Electronic clocks
B. Atomic clocks
C. Quartz clocks
D. Mechanical clocks

A. The frequency
B. The reciprocal of the energy
C. The square of the frequency
D. The square root of the frequency

A. Spectral variation
B. Spatial variation
C. Temporal variation
D. All of these