Spatial variation in horizontal and vertical directions is caused due to_________________?

Related Mcqs:

1. sensor IFOV is proportional to_________________?

   A. sin2
   B. cos2
   C. sec2
   D. tan2

2. Due to perturbation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its_______________________?

   A. Six ground stations
   B. Five ground stations
   C. Four ground stations
   D. Three ground stations

3. The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target_________________?

   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

4. Due to scan geometry of a satellite sensor____________________?

   A. The off-nadir resolution is degraded
   B. The ground distance swept by the senor, IFOV is proportional to sec2 of scan measured from the nadir
   C. The details towards the edge of the scan get compressed
   D. All of these

5. The coherence length over which there is a strong relationship between amplitudes is_________________?

   A. Directly proportional to the bandwidth
   B. Inversely proportional to the bandwidth
   C. The square of the bandwidth
   D. None of these

6. Which one of the following factors does not affect the scale of the air photographs ?

   A. Focal length
   B. Flying height
   C. Ground elevation
   D. None of these

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

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

8. Critical angle of electromagnetic radiation takes place if__________________?

   A. Angle of incidence is equal to angle of refraction
   B. Angle of incidence is greater than the angle of refraction
   C. Angle of incidence is equal to 90°
   D. Angle of refraction is equal to 90°

9. If electric permittivity and magnetic permeability of the medium are respectively and , then the velocity (Cm) of the electromagnetic wave in the medium is given by___________________?

   A. Cm = 1/
   B. Cm
   C. Cm
   D. None of these

10. Which one of the following statements is correct ?

    A. The function of an information system is to improve one s ability to make decisions
    B. The information system is the chain of operations
    C. A map is a collection of stored, analysed data, its stored information is suitability used in making decisions
    D. All the above