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MCQs

Total Questions : 687 | Page 63 of 69 pages
Question 621. The coherence length over which there is a strong relationship between amplitudes is_________________?
  1.    Directly proportional to the bandwidth
  2.    Inversely proportional to the bandwidth
  3.    The square of the bandwidth
  4.    None of these
 Discuss Question
Answer: Option B. -> Inversely proportional to the bandwidth
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 622. Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena________________?
  1.    Cloud evolution
  2.    Vegetative cover
  3.    Snow cover
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 623. Coherence of two electromagnetic waves takes place if their phase difference is_________________?
  1.    Constant in time
  2.    Constant in space
  3.    Constant in time and space
  4.    None of these
 Discuss Question
Answer: Option C. -> Constant in time and space
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 624. In case of reflection and refraction of electromagnetic radiation ?
  1.    Angle of incidence = angle of refraction
  2.    Angle of incidence = angle of reflection
  3.    Angle of refraction = sum of the angles of incidence and refraction
  4.    All the above
 Discuss Question
Answer: Option B. -> Angle of incidence = angle of reflection
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 625. Sensor IFOV is proportional to_________________?
  1.    sin2
  2.    cos2
  3.    sec2
  4.    tan2
 Discuss Question
Answer: Option C. -> sec2
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 626. Which one of the following parameters is considered to determine the reflectance of a vegetation canopy ?
  1.    Solar zenith angle
  2.    Azimuth angle
  3.    Look angle
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 627. Which one of the following factors does not affect the scale of the air photographs ?
  1.    Focal length
  2.    Flying height
  3.    Ground elevation
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 628. The optical property of a water body depends on ?
  1.    Absorption by the dissolved material
  2.    Absorption by the suspended particulate matter
  3.    Scattering by the suspended particulate matter
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 629. Which one of the following statements regarding remote sensing is correct ?
  1.    The interaction of the electromagnetic radiation with the target
  2.    The emission of electromagnetic radiation from the target
  3.    Both A. and B.
  4.    Neither A. nor B.
 Discuss Question
Answer: Option C. -> Both A. and B.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 630. Which one of the following statements is correct regarding the GPS satellites ?
  1.    The nominal altitude is about 20,200 km
  2.    The inclination of axis satellite is 55°
  3.    The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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