Elements of Remote Sensing Online Test – Multiple Choice Questions and Answers

1. Orbital radius of GPS satellites is approximately:


2. Formation of snow occurs if the cloud temperature is


3. The altitudinal distance of a geostationary satelite from the earth is about:


4. Which one of the following statement is incorrect regarding the electromagnetic radiation?


5. Consider the following statements regarding the satellite imaging : 1. The satellite orbit is fixed in the inertial space 2. During successive across-track imaging, the earth rotates beneath the sensor 3. The satellite images a skewed area Which one of the following statements is/are correct ?


6. For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length lcoh is:


7. In GPS, receivers are used are ;


8. Repetitive observations of the same area at equal interval of time, are useful to monitor the dynamic phenomena :


9. Crop Acreage and Production Estimation (CAPE) was funded and taken up in 1983 by:


10. For interpolation of satellite data used for monitoring dynamic changes that occure on the earth surface, the most suitable orbit for the satellite is :


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