- A. Ultraviolet frequency region
- B. Infrared frequency region
- C. Radio frequency region
- D. All of these
Elements of Remote Sensing
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Which one of the following frequency regions is a part of sun’s radiation?
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Which one of the following statements is correct?
- A. During the day, earth reflects solar radiation
- B. During the day, earth reflects both solar radiations the emission from its surface
- C. During the night, earth emits radiation from its surface
- D. All of these
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Formation of snow occurs if the cloud temperature is_____.
- A. Just above the freezing point
- B. At the freezing point
- C. Below the freezing point
- D. None of these
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The refractive index of the ocean water_____.
- A. Increases with salinity
- B. Increases with temperature
- C. Decreases with salinity
- D. Decreases with temperature
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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
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The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is _____.
- A. 8
- B. 12
- C. 16
- D. 24
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The changes in the reflectivity/emissivity with time, is called_____.
- A. Spectral variation
- B. Spatial variation
- C. Temporal variation
- D. None of these
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Which one of the following quantities forms the basis of radiometry?
- A. Radiant energy (Q)
- B. Radiant flux (φ)
- C. Radiant intensity (I)
- D. All of these
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Which one of the following attributes is not associated with digital maps_____.
- A. Color
- B. Symbology
- C. Legends
- D. South arrow
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Rayleigh’s criteria for a rough surface is: (where letters carry their usual meanings).
- A. h > λ/Δ cos θ
- B. h = λ/8 cos θ
- C. h > λ/8 cos θ
- D. h < λ/8 cos θ
- 1
- 2