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- Question
The altitudinal distance of a geostationary satelite from the earth is about:
Options- A. 26, 000 km
- B. 30, 000 km
- C. 36, 000 km
- D. 44, 000 km
- Correct Answer
- 36, 000 km
- 1. Due to scan geometery of a satellite sensor:
Options- A. the off-nadir resolution is degraded
- B. the ground distance swept by the senor, IFOV is proportional to sec2?, where ? is the angle of scan measured from the nadir
- C. the details towards the edge of the scan get compressed
- D. All of these Discuss
- 2. Which one of the following statements is correct?
Options- A. The function of an information system is to improve ones ability to make decisions
- B. The information system is the chain of operations
- C. A map is a collection of stored, analysed data, its stored information is suitability used in making decisions
- D. All the above Discuss
- 3. Which one of the following quantities forms the basis of radiometery?
Options- A. Radiant energy (Q)
- B. Radiant flux (?)
- C. Radiant intensity (I)
- D. Radiance (L)
- E. All of these Discuss
- 4. For interpolation of satellite data used for monitoring dynamic changes that occure on the earth surface, the most suitable orbit for the satellite is :
Options- A. circular orbit
- B. sun-synchronous orbit
- C. near polar orbit
- D. None of these Discuss
- 5. Pick up the correct statement from the following:
Options- A. A graphical representation of spectral reflectance versis the various growth stages of a crop, depicts a phenologic pattern
- B. The changes in the polarisation of the radiation reflected or emitted by an object, is known as polarisation variation.
- C. The degree of polarisation is a characteristic of the object which helps in the identification of the object.
- D. Signatures only provide statistical nature and are not completely deterministic
- E. All of these Discuss
- 6. Which one of the following geometric errors of satellite sensors is random?
Options- A. scan skew
- B. panoramic distortion
- C. earth rotation
- D. altitude variation Discuss
- 7. 'A time varrying electric field produces a magnetic field.' This phenemenon is called:
Options- A. Hertz's law
- B. Ampere Maxwell's law
- C. Faraday's law
- D. Kirchoff s law Discuss
- 8. Pick up the correct statement from the following :
Options- A. The first man-made satellite, Sputnikl' was launched on 4th October, 1957
- B. The United State's Explorer 6 transmitted the first picture of the earth in August 1959
- C. Television Infrared Observation Satellite (TIROS) designed for meteorological observations, started systematic earth observations from space from 1, April, 1960
- D. U.S.A.'s highly secret mission CORONA started the collection of intelligence photograpy in 1960
- E. All of these. Discuss
- 9. The reflectance from a surface is called specular reflection if it follows: .
Options- A. Snells's law
- B. Lambert's cosine law
- C. Planktan's law
- D. All of these Discuss
- 10. Repetitive observations of the same area at equal interval of time, are useful to monitor the dynamic phenomena :
Options- A. Cloud evolution
- B. Vegetative cover
- C. Snow cover
- D. Forest fires
- E. All of these Discuss
Elements of Remote Sensing problems
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Correct Answer: All of these
Correct Answer: All the above
Correct Answer: All of these
Correct Answer: sun-synchronous orbit
Correct Answer: All of these
Correct Answer: altitude variation
Correct Answer: Ampere Maxwell's law
Correct Answer: All of these.
Correct Answer: Snells's law
Correct Answer: All of these
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