Elements of Remote Sensing

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.

A. Vehicle tracking
B. Land navigation
C. Trans movement
D. All of these

A. 16,200 km
B. 20,200 km
C. 24,400 km
D. 36,100 km

1. Generation of an output to the user
2. Detection of the GPS signals
3. Processing the data in the built-in-computer
4. Decoding the GPS signal
The correct sequence of the stages is?
A. 1, 2, 3, 4
B. 2, 3, 4, 1
C. 2, 4, 3, 1
D. 3, 1, 2 , 4

A. Common boundary between two areas of a locality is known as adjacency
B. The area features which are wholly contained within another area feature, is known so containment
C. The geometric property which describes the linkage between line features is defined as connectivity
D. All of these

A. The angle of incidence is equal to the angle of refraction
B. The angle of refraction r) is given by sin i
C. Both A. and B.
D. Neither A. nor B.

A. Gamma rays (wave length < 10-10 m)
B. Ultraviolet rays (wave length < 10-6 m)
C. Infrared rays (wave length < 10 -4 m)
D. All of these

A. Radiant energy (Q)
B. Radiant flux (Φe )
C. Radiant intensity (I)
D. All of these