In which of the following activities are Indian Remote Sensing (IRS) satellites used?
1. Assessment of crop productivity
2. Locating ground water resources
3. Mineral exploration
4. Telecommunications
5. Traffic studies
Select the correct answer using the code given below(2015)
a) 1, 2 and 3 only
b) 4 and 5 only
c) 1 and 2 only
d) 1, 2, 3, 4 and 5
ANswer: A
For telecommunications geo-stationary satellites are used. Hence, you can easily eliminate statement 4, which then also eliminates statement 5 (because both occur together).
Under remote sensing, Hyperspectral imaging produces an image where each pixel has full spectral information with imaging narrow spectral bands over a contiguous spectral range. Hyperspectral imagers are used in various applications including mineralogy, biology, defence, and environmental measurements.
