Study of which atmospheric layer is most closely related to drag on low-orbit satellites?
Answer and explanation
Correct answer: Thermosphere
Low-Earth-orbit satellites travel through the extremely thin upper atmosphere, especially the thermosphere. Although the gas density there is very low, it is sufficient to produce measurable drag, and solar activity can heat and expand this layer, increasing the drag on satellites. This changes orbital speed and altitude over time. Therefore, option C is correct. The troposphere and stratosphere are much lower, while “lower rainfall zone” is not a recognized atmospheric layer.
Frequently asked questions
What is the correct answer to this question?
Thermosphere
Why is this the correct answer?
Low-Earth-orbit satellites travel through the extremely thin upper atmosphere, especially the thermosphere. Although the gas density there is very low, it is sufficient to produce measurable drag, and solar activity can heat and expand this layer, increasing the drag on satellites. This changes orbital speed and altitude over time. Therefore, option C is correct. The troposphere and stratosphere are much lower, while “lower rainfall zone” is not a recognized atmospheric layer.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bills of Exchange.
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