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- Question
Pick up the correct statement from the following:
Options- A. The wave length of gamma rays is 10-10 m
- B. The wave length of radio rays is 106 m
- C. The visible length occupies a small portion of the electromagntic spectrum extending roughly from 0.4 ? m to 0.7?m wave length.
- D. All of these
- Correct Answer
- All of these
- 1. The energy transported by the electromagnetic wave is proportional to :
Options- A. the altitude of the wave
- B. the square of the altitude of the wave
- C. the cube of the altitude of the wave
- D. the square roof of the amplitude Discuss
- 2. Snow albedo is affected by :
Options- A. wave length
- B. grain size
- C. solar zenith angle
- D. snow pack thickness
- E. All of these Discuss
- 3. For perfect coherent radiation, which one of the following statement is correct?
Options- A. Both the waves must have single frequencies
- B. The directions of motion of both waves are parallel.
- C. The waves must be collimated
- D. All of these Discuss
- 4. The semi-infinite snow albedo is proportional to the square root of the grain radius :
Options- A. in the 0.2 to 0.4 ?m wave length region
- B. in the 0.4 to 0.8 ?m wave length region
- C. in the 0.8 to 1.2 ?m wave length
- D. None of these Discuss
- 5. Pick up the correct statement from the following:
Options- A. Water molecules and salt-ions in the ocean scatter the lower wave length more
- B. An increase in the back scattering coefficient with shorter wave length gives a deep blue colour for clear oceanic water
- C. The ratio of the upwelling irradiance just below the surface and downwelling irradiance just above the surface is called reflectance ratio.
- D. All of these Discuss
- 6. Which one of the following is incorrect statement? While passing through the atmosphere, the solar radiation,
Options- A. remains unaffected
- B. gets scattered
- C. gets absorbed partially
- D. None of these Discuss
- 7. Which one of the following statements is correct?
Options- A. The ratio of the permitivity of a medium and the free space, is called relative permitivity.
- B. Dielectric constant is a pure number and has no dimensions.
- C. The dielectric constant of pure water is 80.
- D. Higher the dielectric constant of a medium, the poorer is its electric conductivity.
- E. All of these Discuss
- 8. Which one of the following statements is correct to remote sensing?
Options- A. The basic property used to identify objects, is called signature.
- B. The ratio of the reflected flux to incident flux is called reflectance which varies fron 0 to 1
- C. The surface from which emergent radiance is constant in all directions is called Lambertian surface.
- D. All of these. Discuss
- 9. Which one of the following statements is not correct?
Options- A. GIS technology is the same as traditional mapping
- B. GIS technology is a tool box for processing maps and fundamental concepts for spatial measurement
- C. GIS technology contains analytic capabilities for overlaying maps
- D. GIS technology is capable to study the environmental surrondings Discuss
- 10. In sun-light water poor in phyto plank tons appears :
Options- A. deep blue
- B. red
- C. green
- D. yellow Discuss
Elements of Remote Sensing problems
Search Results
Correct Answer: the square of the altitude of the wave
Correct Answer: All of these
Correct Answer: All of these
Correct Answer: in the 0.4 to 0.8 ?m wave length region
Correct Answer: All of these
Correct Answer: remains unaffected
Correct Answer: All of these
Correct Answer: All of these.
Correct Answer: GIS technology is the same as traditional mapping
Correct Answer: deep blue
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