Which one of the following factors does not affect the scale of the air photographs ?
A. Focal length
B. Flying height
C. Ground elevation
D. None of these
Elements of Remote Sensing
In case of reflection and refraction of electromagnetic radiation ?
In case of reflection and refraction of electromagnetic radiation ?
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
sensor IFOV is proportional to_________________?
sensor IFOV is proportional to_________________?
A. sin2
B. cos2
C. sec2
D. tan2
Which one of the following parameters is considered to determine the reflectance of a vegetation canopy ?
Which one of the following parameters is considered to determine the reflectance of a vegetation canopy ?
A. Solar zenith angle
B. Azimuth angle
C. Look angle
D. All of these
Coherence of two electromagnetic waves takes place if their phase difference is_________________?
Coherence of two electromagnetic waves takes place if their phase difference is_________________?
A. Constant in time
B. Constant in space
C. Constant in time and space
D. None of these
Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena________________?
Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena________________?
A. Cloud evolution
B. Vegetative cover
C. Snow cover
D. All of these
The coherence length over which there is a strong relationship between amplitudes is_________________?
The coherence length over which there is a strong relationship between amplitudes is_________________?
A. Directly proportional to the bandwidth
B. Inversely proportional to the bandwidth
C. The square of the bandwidth
D. None of these