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
Related Mcqs:
- The code based GPS receivers are generally used for_________________?
A. Vehicle tracking
B. Land navigation
C. Trans movement
D. All of these - DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within___________________?
A. 25 km
B. 50 km
C. 75 km
D. 100 km - 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 - sensor IFOV is proportional to_________________?
A. sin2
B. cos2
C. sec2
D. tan2 - Which one of the following statement is incorrect regarding the electromagnetic radiation ?
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 - Pick up the correct definition from the following with response to GIS_______________?
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 - The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called_________________?
A. Spectral variation
B. Spatial variation
C. Temporal variation
D. None of these - Earth observations from a satellite platform provide____________?
A. Synoptic view of a large area
B. Constant solar zenith angles and similar illumination conditions
C. Repetitive observations of the same area with intervals of a few minutes to a few weeks
D. All of these - Spatial variation in horizontal and vertical directions is caused due to_________________?
A. Physical weathering of rocks
B. Chemical weathering of rocks
C. Biological weathering of rocks
D. All of these - Remote sensing techniques make use of the properties of ______________ emitted, reflected or diffracted by the sensed objects?
A. Electric waves
B. Sound waves
C. Electromagnetic waves
D. Wind waves
