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- Question
Pick up the correct statement from the following:
Options- A. The surface defined by the locus of points having same phase, is called a wave front.
- B. The wave whose surface of constant phase are parallel planes, is known as a plane wave.
- C. The relative phase difference between the waves is important and not the absolute phase of a point on the wave
- D. All of these
- Correct Answer
- All of these
- 1. Which one of the following helps to identify the objects on the earth surface?
Options- A. atmospheric window
- B. signature
- C. radiometric error
- D. None of these Discuss
- 2. The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,
Options- A. reduces the contrast of the image and also its sharpness
- B. increases the contrast of the image but reduces the sharpness
- C. increases both the contrast and sharpness
- D. reduces the contrast but increases the sharpness Discuss
- 3. "An Electromagnetic wave falls on to a boundary between two loss less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as :
Options- A. Fresnel reflection
- B. Fresnel refraction
- C. Snell's law
- D. None of these Discuss
- 4. Which one of the following statements is correct?
Options- 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 Discuss
- 5. The most widely used antenna in GPS is
Options- A. Parabolid antenna
- B. Microstrip antenna
- C. Horn antenna
- D. Slotted antenna Discuss
- 6. In the given figure the phase of
Options- A. crest A is ?/2
- B. B crossing is ?
- C. trough C is 3 ?/2
- D. All of these Discuss
- 7. The value of energy quantum for radiation of any frequency is proportional to :
Options- A. the frequency
- B. the reciprocal of the energy
- C. the square of the frequency
- D. the square root of the frequency Discuss
- 8. Pick up the correct definition from the following with response to GIS.
Options- A. Common boundry between two areas of a locality is known as adjacency.
- B. The area features which are wholly contained within another area feature, is known so containment.
- C. The geometric property which describes the linkage between line features is defined as connectivity.
- D. All of these. Discuss
- 9. Which one of the following statements is correct regarding the GPS satellites?
Options- A. The nominal altitude is about 20, 200 km
- B. The inclination of axis satellite is 55°
- C. The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)
- D. All of these Discuss
- 10. Pick up the correct statement from the following:
Options- A. Permeability is a measure of conducting the magnetic lines of force in the material.
- B. Permeability is a measure of the extent to which magnetic lines of force can penetrate a medium.
- C. Permeability is expressed as the ratio of the magnetic flux density (B) to the field strength of the magnetizing field.
- D. The force between the magnetic poles is inversely proportional to the permeability of the medium.
- E. All of these Discuss
Elements of Remote Sensing problems
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Correct Answer: signature
Correct Answer: reduces the contrast of the image and also its sharpness
Correct Answer: Fresnel reflection
Correct Answer: All of these
Correct Answer: Microstrip antenna
Correct Answer: All of these
Correct Answer: the frequency
Correct Answer: All of these.
Correct Answer: All of these
Correct Answer: All of these
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