Elements of Remote Sensing problems
- 1. Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings).
Options- A. h > ?/? cos ?
- B. h = ?/8 cos ?
- C. h > ?/8 cos ?
- D. h < ?/8 cos ? Discuss
Correct Answer: h > ?/8 cos ?
- 2. Pick up the correct statement from the following:
Options- A. Indian space effort started in 1962 with the establishment of a rocket.
- B. Development of space (DOS) was established by the Government of India in 1972
- C. Indian Space Research Organisation (ISRO) is responsible for the space technology and its application to various activities.
- D. All of these Discuss
Correct Answer: All of these
- 3. Pick up the correct statement from the following:
Options- A. In remote sensing technique, the observation place, is called a platform
- B. Platforms may be either stationary or mobile
- C. Spatial resolution of the imaging system becomes poorer with increase of platform height.
- D. Area coverage of the imaging system increases with the increase of the platform altitude.
- E. All of these Discuss
Correct Answer: All of these
- 4. Which one of the following residual biases involves the GPS accuracy?
Options- A. Satellite dependent baises due to uncertainty in the orbital parameters of the satellite.
- B. Receiver-depandent biases due to clock stability with line
- C. Signal propagation baises due to the sphere and troposphere propogation.
- D. All the above Discuss
Correct Answer: All the above
- 5. A and B are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?
Options- A. Height displacement of A will be less than that of B
- B. Height displacement of B will be less than that of A
- C. Height displacement of A and B is equal
- D. Height displacement of A and B will be towards each other Discuss
Correct Answer: Height displacement of A will be less than that of B
- 6. Which one the following is a correct statement?
Options- A. The vertical section of the soil extending into the parent material, is called profile
- B. The layers of the soil parallel to the earth surface, are called horizons.
- C. The transitional layer between two adjoining horizons, is called boundary.
- D. All of these Discuss
Correct Answer: All of these
- 7. The refractive index of the ocean water:
Options- A. increases with salinity
- B. increases with temperature
- C. decreases with salinity
- D. decreases with temperature Discuss
Correct Answer: increases with salinity
- 8. A perfectly black body :
Options- A. is a diffuse emitter
- B. absorbs all the radiations of every wave lengths
- C. emits power of every wave length
- D. All the above Discuss
Correct Answer: All the above
- 9. Which one of the following relationship between the wave length (?), and frequency and the speed (C) of the electromagnetic wave is correct?
Options- A. C = v + ?
- B.
- C. C = v?
- D.
Discuss
Correct Answer: C = v?
- 10. Coherence of two electromagnetic waves takes place if their phase difference is :
Options- A. constant in time
- B. constant in space
- C. constant in time and space
- D. None of these Discuss
Correct Answer: constant in time and space
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