Elements of Remote Sensing

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

1. The satellite orbit is fixed in the inertial space
2. During successive across-track imaging, the earth rotates beneath the sensor
3. The satellite images a skewed area
Which one of the following statements is/are correct?
A. 1, 2, 3
B. 1, 3
C. 2, 3
D. 1, 2

A. 10-10 to 106 m
B. 10-8 to 106 m
C. 10-10 to 1010 m
D. 10-8 to 108 m

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. Angle of incidence is equal to angle of refraction
B. Angle of incidence is greater than the angle of refraction
C. Angle of incidence is equal to 90°
D. Angle of refraction is equal to 90°

A. The pigments
B. Internal cell structur
C. Equivalent water content
D. All of these

A. Altitude variation
B. Altitude
C. Orbit drift
D. All of these

A. h = dp/(B/H)
B. h = (B/H) dp
C. h = dp/(H/B)
D. h = (H/B) dp

A. When the electric field oscillates in the direction of the electric vector, a plane polarised wave is formed
B. When the electric vector is in the plane of incidence, vertical polarisation is formed
C. When the electric vector is at right angles to the plane of incidence, horizontal polarization wave is formed
D. All of these

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