Civil Engineering - Elements of Remote Sensing

Exercise : Elements of Remote Sensing - Section 1
6.
Which one of the following frequency regions is a part of sun's radiation?
Ultraviolet frequency region
Visible frequency region
Infrared frequency region
Radio frequency region
All of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface, are called :
sensonrs
passive sensors
active sensors
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
Due to pertubation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its
six ground stations
five ground stations
four ground stations
three ground stations
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
Coherence of two electromagnetic waves takes place if their phase difference is :
constant in time
constant in space
constant in time and space
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,
reduces the contrast of the image and also its sharpness
increases the contrast of the image but reduces the sharpness
increases both the contrast and sharpness
reduces the contrast but increases the sharpness
Answer: Option
Explanation:
No answer description is available. Let's discuss.