1. Crop Acerage and Production  Estimation was funded and taken up in the year 1983,

  1. USA
  2. European Union
  3. Russia
  4. India  (Ans)

2. Which one of the following quantities forms the basic of Radiometry?

  1. Radiant Energy
  2. Radiant Flux
  3. Radiant intensity
  4. Radiance
  5. All of these (Ans)

3. The reflectance from a surface is called specular reflection if it follows,

  1. Snells Law (Ans)
  2. Lamberts Cosine Law
  3. Planktans Law
  4. All of these

4. Rayleigh’s criteria for a rough surface is

  1. h > λ/Δ Cos ϴ
  2. h =λ/8 Cos ϴ
  3. h > λ/8 Cos ϴ (Ans)
  4. h < λ/Δ Cos ϴ

5. The ratio of the total solar radiant energy returned y a planetary body to the total radiant energy incident on the body is called,

  1. reflectance
  2. reflectance factor
  3. albedo (Ans)
  4. non of these

6. Identification of crops is affected by

  1. the spectral characteristics of the sensor
  2. the spatial characteristics of the sensor
  3. the radio metric characteristics of the sensor
  4. All of these (Ans)

7. Remote sensing techniques makes use of the properties of ……………. Emmited, reflected, diffracted by the sensed objects

  1. Electric waves
  2. Sound waves
  3. Electromagnetic waves (Ans)
  4. Wind waves

8. Remote sensing technique are being usefully employed for the purpose of,

  1. Improving natural resource management
  2. Land use
  3. Protection of the environment
  4. All of these (Ans)

9. The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying in scattered radiance, is called,

  1. Passive remote sensing
  2. Active remote sensing (Ans)
  3. Neutral remote sensing
  4. None of these