Questions and answers for exam Preparation

MCQs

Total Questions : 687 | Page 65 of 69 pages

Question 641. According to the Snell’s law if an electromagnetic wave is incident in a medium (refractive index n1) on another medium (refractive index m2)________________?

The angle of incidence is equal to the angle of refraction
The angle of refraction r) is given by sin i
Both A. and B.
Neither A. nor B.

Discuss Question

Answer: Option B. -> The angle of refraction r) is given by sin i
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 642. The various stages occuring in GPS system are described below ?
1. Generation of an output to the user
2. Detection of the GPS signals
3. Processing the data in the built-in-computer
4. Decoding the GPS signal
The correct sequence of the stages is?

1, 2, 3, 4
2, 3, 4, 1
2, 4, 3, 1
3, 1, 2 , 4

Discuss Question

Answer: Option C. -> 2, 4, 3, 1
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 643. Pick up the correct definition from the following with response to GIS_______________?

Common boundary between two areas of a locality is known as adjacency
The area features which are wholly contained within another area feature, is known so containment
The geometric property which describes the linkage between line features is defined as connectivity
All of these

Discuss Question

Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 644. Geodimeter is based on_________________?

Propagation of modulated light waves
Propagation of infrared radiation
The visible light as carrier with frequency of the order of 5 × 1014 Hz
High frequency radio waves

Discuss Question

Answer: Option A. -> Propagation of modulated light waves
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 645. Pick up the correct statement from the following_________________?

When the electric field oscillates in the direction of the electric vector, a plane polarised wave is formed
When the electric vector is in the plane of incidence, vertical polarisation is formed
When the electric vector is at right angles to the plane of incidence, horizontal polarization wave is formed
All of these

Discuss Question

Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 646. While propagating through homogeneous, isotropic media_________________?

Directions of both the fields are orthogonal
Both the fields are at right angles to the direction of propagation
Both A. and B.
Neither A. nor B.

Discuss Question

Answer: Option C. -> Both A. and B.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 647. The normal altitude of GPS satellite is about________________?

16,200 km
20,200 km
24,400 km
36,100 km

Discuss Question

Answer: Option B. -> 20,200 km
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 648. The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called_________________?

Spectral variation
Spatial variation
Temporal variation
None of these

Discuss Question

Answer: Option B. -> Spatial variation
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 649. The code based GPS receivers are generally used for_________________?

Vehicle tracking
Land navigation
Trans movement
All of these

Discuss Question

Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 650. If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height___________________?