Civil Engineering - Elements of Remote Sensing
Exercise :: Elements of Remote Sensing - Section 1
| 46. |
Leaf reflactance depends primarily on : |
| A. |
the pigments | | B. |
internal cell structure | | C. |
equivalent water content | | D. |
All of these |
Answer: Option D
Explanation:
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| 47. |
Pick up the correct statement from the following |
| A. |
The ratio of the up flux and down flux just above the snow surface, is called albedo | | B. |
Spectral albedo of snow is calculated for the semi-infinite snow thickness | | C. |
Water equivalent height of snow is the height of water column obtained by melting snow. | | D. |
A homogeneous snow pack is one whose average grain size does not vary with depth. | | E. |
All of these |
Answer: Option E
Explanation:
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| 48. |
Pick up the correct statement from the following: |
| A. |
Permeability is a measure of conducting the magnetic lines of force in the material. | | B. |
Permeability is a measure of the extent to which magnetic lines of force can penetrate a medium. | | C. |
Permeability is expressed as the ratio of the magnetic flux density (B) to the field strength of the magnetizing field. | | D. |
The force between the magnetic poles is inversely proportional to the permeability of the medium. | | E. |
All of these |
Answer: Option E
Explanation:
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| 49. |
Pick up the correct statement from the following: |
| A. |
In remote sensing technique, the observation place, is called a platform | | B. |
Platforms may be either stationary or mobile | | C. |
Spatial resolution of the imaging system becomes poorer with increase of platform height. | | D. |
Area coverage of the imaging system increases with the increase of the platform altitude. | | E. |
All of these |
Answer: Option E
Explanation:
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