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Civil Engineering - Elements of Remote Sensing

Exercise : Elements of Remote Sensing - Section 2
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.
17.
The infrared portion of EMR lies between
0.4 - 0.7 μm
0.5 mm to lm
0.7 - 1.3 μm
0.7 to 14 μm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Who coined the term, 'Remote sensing'.
Evelyn L. Pruitt, a geographer
Gaspard Felix Tournachon, a French scientist
Wilbur Wright, an Italian sciencist
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length lcoh is:
130 km
230 km
250 km
500 km
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Pick up the correct statement from the following:
A graphical representation of spectral reflectance versis the various growth stages of a crop, depicts a phenologic pattern
The changes in the polarisation of the radiation reflected or emitted by an object, is known as polarisation variation.
The degree of polarisation is a characteristic of the object which helps in the identification of the object.
Signatures only provide statistical nature and are not completely deterministic
All of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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