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Civil Engineering - Elements of Remote Sensing

Exercise : Elements of Remote Sensing - Section 3
21.
Pick up the correct statement from the following:
Photography was developed in 1826
Balloons were used as stable platform for aerial photography in 1903
The first aerial photography from an aerocraft was made by Willeur Wright in 1909 in Italy.
All of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Pick up the correct statement from the following:
Electromagnetic wave is composed of electric and magnetic fields
Electric and magnetic fields of electromagnetic wave remain mutually orthogonal and transverse to the direction of propagation.
If the electromagnetic wave moves in the z-direction, its electric vector remains in the XY plane along any direction.
Polirization defines the orientation of the fields
All of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The information system is the chain of the following operations,
1. Collection of data
2. Planning the observations
3. Analysis of data
4. Decision making process Which one of the chains is correct ?
4, 1, 2, 3
2, 1, 3, 4
3, 2, 1, 4
1, 3, 4, 2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Polarising angle (i) and refractive index (μ) of the reflecting surface are related by:
sin i = μ
cos i = μ
tan i = μ
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Pick up the incorrect statement regarding the optical infrared region of the electromagnetic spectrum from the following :
visible region, 0.4 μm - 0.7 μm
short wave infrared region, 0.7 μ m - 1.5 μm
near infrared region, 1.5 μ m - 3.0 μm
microwave infrared region, 3.0 μ m - 8.0 μm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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