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- Subject
- Elements of Remote Sensingcivil-engineering-mcqs › elements-of-remote-sensing
- Published
- 20 Jan 2019
- Last updated
- 28 May 2026
Explanation
The refractive index of ocean water becomes higher when the salinity increases because dissolved salts affect the water's optical properties. Conversely, temperature changes have a different effect, but salinity is the primary factor causing the refractive index to increase.
More Elements of Remote Sensing MCQs
Practice related questions from the same subject.
- 1.What is the primary purpose of photo-interpretation?
- 2.Remote sensing methods rely on which type of waves that are emitted, reflected, or scattered by the target objects?
- 3.What is the approximate altitude of a geostationary satellite above the Earth's surface?
- 4.What effects are caused by the scan geometry of a satellite sensor?
- 5.Which of the following best describes the positional accuracy of Differential GPS (DGPS)?
- 6.What is the term for the process where electromagnetic radiation of a particular wavelength is emitted to illuminate a surface, allowing the analysis of the reflected radiation from that target?
- 7.Which part of the electromagnetic spectrum can travel through Earth's atmosphere with minimal absorption or scattering?
- 8.What are the devices called that emit electromagnetic radiation at specific wavelengths or wavelength ranges to illuminate the Earth's surface?
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