GK
ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ultraviolet
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Near infrared
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Visible
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Middle infrared
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Detailed explanation-1: -Conclusively, multiple leaf layers cause higher reflectance (up to 85%) in the near-infrared region.
Detailed explanation-2: -According to the fig. in the last link the vegetation has maximum reflectance around 0, 75µm to 1, 4µm. Green leaves reflect green and yellow light as well as infra-red :) Chlorophyll presents higher absorption values in the visible spect, specially in the blue and red bands.
Detailed explanation-3: -Healthy plants have a high reflectance in the near-infrared between 0.7 and 1.3 µm. This is primarily due to the internal structure of plant leaves. As this internal structure varies amongst different plant species, the near infrared wavelengths can be used to discriminate between different plant species.