The refractive index of the ocean water_______________?

Related Mcqs:

1. 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.

2. “An Electromagnetic wave falls on to a boundary between two losses 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___________________?

   A. Fresnel reflection
   B. Fresnel refraction
   C. Snell’s law
   D. None of these

3. Pick up the correct statement from the following ?

   A. Topology describes the geometric characteristic of objects which do not change under transformations and are independent of any coordinate system
   B. Topological characteristics of an object are independent of scale measurement
   C. The three elements of topology are adjacency, containment, and connectivity
   D. All of these

4. Which one of the following statements is correct regarding the GPS satellites ?

   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

5. Electromagnetic spectrum contains________________?

   A. Gamma rays (wave length < 10-10 m)
   B. Ultraviolet rays (wave length < 10-6 m)
   C. Infrared rays (wave length < 10 -4 m)
   D. All of these

6. Leaf reflectance depends primarily on______________?

   A. The pigments
   B. Internal cell structur
   C. Equivalent water content
   D. All of these

7. Electromagnetic radiation_______________?

   A. Produces a time varying magnetic field and vice versa
   B. Once generated, remains self-propagating
   C. Is capable to travel across space
   D. All of these

8. The most widely used antenna in GPS is_______________?

   A. Parabolic antenna
   B. Microstrip antenna
   C. Horn antenna
   D. Slotted antenna

9. The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as__________________?

   A. Ozone hole

   B. Atmospheric window

   C. Ozone window

   D. Black hole

10. 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