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Civil Engineering - Elements of Remote Sensing - Discussion

Discussion Forum : Elements of Remote Sensing - Section 2 (Q.No. 16)
Elements of Remote Sensing
16.
A passive sensor uses :
sun as the source of energy
flash light as a source of energy
its own source of energy
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.
Deep said:   4 years ago
Active- it's own source of energy.
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