Remote Sensing and GIS (3150617) MCQs

MCQs of Remote sensing

Showing 11 to 20 out of 78 Questions
11.

Diffuse reflection occurs when all the enrgy is reflected ____________ in all direction.

(a)

Randomly 

(b)

Uniformly 

(c)

Cannot say

(d)

None of the above 

Answer:

Option (b)

12.

On ______________ surface, perfect diffuse reflection occurs.

(a)

Ideal

(b)

Ideal and smooth

(c)

Lambertian 

(d)

None of the above 

Answer:

Option (c)

13.

When EM radiation enters the atmosphere, it is subjected to 

(a)

Scattering 

(b)

Absorption

(c)

Transmission

(d)

All the above 

Answer:

Option (d)

14.

The fact that sky appears to be blue is due to _______________.

(a)

Rayleigh scattering 

(b)

Mie scattering 

(c)

Non selective scattering 

(d)

All of above 

Answer:

Option (a)

15.

Rayleigh scattering occurs when particle size is ______________than wavelength of incoming radiation.

(a)

Very small

(b)

equal

(c)

Smaller than or equal

(d)

None of the above 

Answer:

Option (a)

16.

Dust, smoke or pollen exhibits ________________ scattering.

(a)

Rayleigh 

(b)

Mie

(c)

Non selective 

(d)

All of above 

Answer:

Option (b)

17.

_____________ scattering occurs when the particle size is nearly 8 - 10 times than that of wavelength of incoming radiation.

(a)

Rayleigh 

(b)

Mie 

(c)

Non selective 

(d)

None of the above 

Answer:

Option (c)

18.

Those areas of the spectrum which are not severely influenced by atmospheric absorption and thus, are useful to remote sensors, are called ___________________.

(a)

Special bands of EM spectrum

(b)

Atmospheric Windows 

(c)

Radio waves

(d)

None of the above 

Answer:

Option (b)

19.

Transmission Windows in visible and Infrared regions are ______________ µm.

(a)

0.3 - 0.4 

(b)

0.4 - 0.8

(c)

0.3 - 0.7 

(d)

0.3 - 0.8

Answer:

Option (c)

20.

In wavelength from __________ μm clouds and snow have same reflectance and hence difficult to differentiate.

 

(a)

0.3 - 3.0 

(b)

0.5 - 6.0 

(c)

0.03 - 0.1 

(d)

None of above 

Answer:

Option (a)

Showing 11 to 20 out of 78 Questions