Leaf reflectance depends primarily on______________?

Related Mcqs:

1. Which one of the following parameters is considered to determine the reflectance of a vegetation canopy ?

   A. Solar zenith angle
   B. Azimuth angle
   C. Look angle
   D. All of these

2. The reflection of solar energy is characterised by the water content in the leaf, in the reflective optical infrared______________?

   A. Visible (0.4 –
   B. Near-IR (0.7 –
   C. Short wave-IR (1.3 –
   D. None of these

3. The optical property of a water body depends on ?

   A. Absorption by the dissolved material
   B. Absorption by the suspended particulate matter
   C. Scattering by the suspended particulate matter
   D. All of these

4. Coherence of two electromagnetic waves takes place if their phase difference is_________________?

   A. Constant in time
   B. Constant in space
   C. Constant in time and space
   D. None of these

5. Pick up the correct statement from the following?

   A. Frequency is the number of wave crests passing a fixed point in one second
   B. Frequency of a wave is measured in Hertz (Hz)
   C. Amplitude of a wave is the height of its crust from the mid-point
   D. All of these

6. 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?

   A. 1, 2, 3, 4
   B. 2, 3, 4, 1
   C. 2, 4, 3, 1
   D. 3, 1, 2 , 4

7. Consider the following statements regarding the satellite imaging_________________?

   1. The satellite orbit is fixed in the inertial space
   2. During successive across-track imaging, the earth rotates beneath the sensor
   3. The satellite images a skewed area
   Which one of the following statements is/are correct?

   A. 1, 2, 3
   B. 1, 3
   C. 2, 3
   D. 1, 2

8. In GPS, receivers used are___________________?

   A. Electronic clocks
   B. Atomic clocks
   C. Quartz clocks
   D. Mechanical clocks

9. The basic requirement of any sensor system is___________________?

   A. Radiometric resolution
   B. Spatial resolution
   C. Spectral resolution
   D. All of these

10. The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called____________________?

    A. Passive remote sensing
    B. Active remote sensing
    C. Neutral remote sensing
    D. None of these