Geography · Remote Sensing
In the context of Remote Sensing, what is the meaning of the term 'Reflectance'?
- 1The ground area covered by an image or a photograph.
- 2The ratio of the radiant energy absorbed by a substance to the energy it receives.
- 3The energy propagated through space or a medium at the speed of light.
- 4The ratio of the radiant energy reflected by a substance to the energy it receives.✓
Correct answer
The ratio of the radiant energy reflected by a substance to the energy it receives.
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