Elements of Remote Sensing

A. Spectral variation
B. Spatial variation
C. Temporal variation
D. None of these

A. Atmospheric window
B. Signature
C. Radiometric error
D. None of these

A. Reflectance
B. Reflectance factor
C. Albedo
D. None of these

A. These are produced by the motion of electric charge
B. The oscillation of charged particles sets up changing electric fields
C. The changing electric fields induce the changing magnetic fields in the surrounding medium
D. None of these

A. Affects leaf colour
B. Reduces pigment concentration
C. Increase the visible reflectivity
D. All of these

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

A. Absorption by the dissolved material
B. Absorption by the suspended particulate matter
C. Scattering by the suspended particulate matter
D. All of these

A. The interaction of the electromagnetic radiation with the target
B. The emission of electromagnetic radiation from the target
C. Both A. and B.
D. Neither A. nor B.

A. Focal length
B. Flying height
C. Ground elevation
D. None of these

A. Angle of incidence = angle of refraction
B. Angle of incidence = angle of reflection
C. Angle of refraction = sum of the angles of incidence and refraction
D. All the above