Civil Engineering :: Elements of Remote Sensing
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Identification of crops is affected by:
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The semi-infinite snow albedo is proportional to the square root of the grain radius :
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Depending upon the nature of the targeted object and the wave length of the electromagnetic radiation incident on it, the radiation gets :
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Which one of the following statements is correct ?
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"All bodies at temperatures above absolute zero degree emit electromagnetic radiation at different wave length", is known as:
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Assuming n as the frequency of radiation, n0 as the threshold frequency and k as a constant, the energy of the photo-electrons (E) is related as
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Assuming n as the frequency of radiation, n0 as the threshold frequency and k as a constant, the energy of the photo-electrons (E) is related as
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In which part of the reflective optical infrared region, the effect of multiple leaves in vegetation canopy is maximum ?
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Which one of the following statements is correct ?
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A.
Each satellite of the GPS system transmits two L band signals. |
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B.
The two L band signals are modulated by the Pseudorandom binary codes (PN). |
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C.
The GPS receiver reads the specific code of the satellite. |
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D.
The PN code determines the time taken by the receiver to reach the receiver which is converted into distance |
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E.
All of these |
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A.
The ratio of the permitivity of a medium and the free space, is called relative permitivity. |
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B.
Dielectric constant is a pure number and has no dimensions. |
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C.
The dielectric constant of pure water is 80. |
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D.
Higher the dielectric constant of a medium, the poorer is its electric conductivity. |
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E.
All of these |