Elements of Remote Sensing - Section 1 (4)

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Elements of Remote Sensing - Section 1

Questions related to Element of Remote Sensing can be
found here in this section and you will get all necessary MCQs of this field.

25.

The remote sensing techniques applied for the earth's surface features, is generally confined to the following wave lengths :

A.	0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 Î¼m
B.	2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 Î¼m
C.	4.2 to 5.0, 7.0 to 15.0 Î¼m and 1 cm to 30 cm
D.	All of these

Answer: Option D

Explanation:

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26.

Which one of the following statements is correct?

A.	During the day, earth reflects solar radiation
B.	During the day earth reflects both solar radiation the emission from its surface
C.	During the night, earth emits radiation from its surface
D.	All of these

Answer: Option D

Explanation:

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27.

The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:

A.	ozone hole
B.	atmospheric window
C.	ozone window
D.	black hole

Answer: Option B

Explanation:

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28.

Which one of the following helps to identify the objects on the earth surface ?

A.	atmospheric window
B.	signature
C.	radiometric error
D.	None of these

Answer: Option B

Explanation:

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29.

The basic requirement of any sensor system, is :

A.	radiometric resolution
B.	spatial resolution
C.	spectral resolution
D.	temporal resolution
E.	All of these

Answer: Option E

Explanation:

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30.

Pick up the correct statement from the following :

A.	The distance between two successive crests or troughs of a wave, is called, the wave length
B.	The wave length is measured in metres and a fraction of a metre
C.	The wave length is generally denoted by Î»
D.	The length of the crest from the mid point, is called amplitude
E.	All of these

Answer: Option E

Explanation:

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31.

Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings).

A.	h > Î»/Î” cos Î¸
B.	h = Î»/8 cos Î¸
C.	h > Î»/8 cos Î¸
D.	h < Î»/8 cos Î¸

Answer: Option C

Explanation:

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32.

Pick up the correct statement from the following:

A.	Indian space effort started in 1962 with the establishment of a rocket.
B.	Development of space (DOS) was established by the Government of India in 1972
C.	Indian Space Research Organisation (ISRO) is responsible for the space technology and its application to various activities.
D.	All of these

Answer: Option D

Explanation:

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