Elements of Remote Sensing

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

A. The refractive index of a medium varies according to the wavelength of the radiation,
B. The variation of the refractive index with wave length, is called dispersion,
C. The splitting of colours of white light by passing through a prism is caused due to dispersion
D. All of these

A. Propagation of modulated light waves
B. Propagation of infrared radiation
C. The visible light as carrier with frequency of the order of 5 × 1014 Hz
D. High frequency radio waves

A. Directions of both the fields are orthogonal
B. Both the fields are at right angles to the direction of propagation
C. Both A. and B.
D. Neither A. nor B.