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- Question
The emission of electrons from a metal plate exposed to light depends on the :
Options- A. intensity of the light
- B. frequency of light
- C. both (a) and (b)
- D. neither (a) nor (b)
- Correct Answer
- both (a) and (b)
- 1. Which one of the following can travel through empty space :
Options- A. sound waves
- B. water waves
- C. electromagnetic waves
- D. spring waves Discuss
- 2. Electromagnetic waves are characterised by :
Options- A. frequency
- B. wave length
- C. intensity
- D. direction of travel and plane of polarisation.
- E. All of these Discuss
- 3. The information system is the chain of the following operations,
1. Collection of data
2. Planning the observations
3. Analysis of data
4. Decision making process Which one of the chains is correct?
Options- A. 4, 1, 2, 3
- B. 2, 1, 3, 4
- C. 3, 2, 1, 4
- D. 1, 3, 4, 2 Discuss
- 4. Phytoplanktons :
Options- A. are microscopic plants
- B. are the first link in all the aquatic and marine food chains
- C. convert solar energy, dissolved carbon and nitrogen into organic biomass
- D. All of these Discuss
- 5. The main functional blocks of a mul-tispectral scanner (MSS) are given below :
1. Video processor
2. Dispersive system
3. Detector
4. Signal conditioner
5. Collecting optics
Which one of the following sequences is correct?
Options- A. 1, 4, 5, 3, 2
- B. 5, 3, 2, 4, 1
- C. 5, 2, 3, 1, 4
- D. 1, 3, 2, 4, 5 Discuss
- 6. For accurate position fix, the three satellites:
Options- A. must be along a common arc
- B. must be in vertical line above the receiver
- C. must be widely separated and well distributed
- D. must be such that one satellite is overhead of the receiver and other two widely separated Discuss
- 7. Pick up the incorrect statement regarding the optical infrared region of the electromagnetic spectrum from the following :
Options- A. visible region, 0.4 ?m - 0.7 ?m
- B. short wave infrared region, 0.7 ? m - 1.5 ?m
- C. near infrared region, 1.5 ? m - 3.0 ?m
- D. microwave infrared region, 3.0 ? m - 8.0 ?m Discuss
- 8. GPS has been widely recognized as accurate, fast and cost-effective method for the following:
Options- A. Collection of the geographic coordinate data used in GIS
- B. for movement of navigation
- C. For determination of precise orbit and altitude of low earth orbiting satellites
- D. All of these Discuss
- 9. Pick up the correct statement from to following:
Options- A. For complete temporal coherence, the waves must be mono chromatic.
- B. For spatial coherence, the phase difference between two points in space is constant with time.
- C. Superposition of the coherent waves produce interference
- D. With 0 phase difference, the constructive interference takes place.
- E. All of these Discuss
- 10. Polarising angle (i) and refractive index (?) of the reflecting surface are related by:
Options- A. sin i = ?
- B. cos i = ?
- C. tan i = ?
- D.
Discuss
Elements of Remote Sensing problems
Search Results
Correct Answer: electromagnetic waves
Correct Answer: All of these
Correct Answer: 2, 1, 3, 4
Correct Answer: All of these
Correct Answer: 5, 2, 3, 1, 4
Correct Answer: must be widely separated and well distributed
Correct Answer: short wave infrared region, 0.7 ? m - 1.5 ?m
Correct Answer: All of these
Correct Answer: All of these
Correct Answer: tan i = ?
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