Remote sensing techniques make use of the properties of ______________ emitted, reflected or diffracted by the sensed objects?

Related Mcqs:

1. Which one of the following statements regarding remote sensing is correct ?

   A. The interaction of the electromagnetic radiation with the target
   B. The emission of electromagnetic radiation from the target
   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. 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. Who coined the term, ‘Remote sensing_______________?

   A. Evelyn L. Pruitt, a geographer
   B. Gaspard Felix Tournachon, a French scientist
   C. Wilbur Wright, an Italian scientist
   D. None of these

5. Which one of the following helps to identify the objects on the earth surface ?

   A. Atmospheric window
   B. Signature
   C. Radiometric error
   D. None of these

6. The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called_________________?

   A. Spectral variation
   B. Spatial variation
   C. Temporal variation
   D. None of these

7. In case of reflection and refraction of electromagnetic radiation ?

   A. Angle of incidence = angle of refraction
   B. Angle of incidence = angle of reflection
   C. Angle of refraction = sum of the angles of incidence and refraction
   D. All the above

8. Which one of the following quantities forms the basis of radiometry ?

   A. Radiant energy (Q)
   B. Radiant flux (Φe )
   C. Radiant intensity (I)
   D. All of these

9. Which one of the following errors is produced by platform characteristics of the sensor ?

   A. Altitude variation
   B. Altitude
   C. Orbit drift
   D. All of these

10. Which one of the following attributes is not associated with digital maps_______________?

    A. Colour
    B. Symbology
    C. Legends
    D. South arrow