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InterviewSolution
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Which of the following makes the existence of ionosphere possible?(a) Rotation of the Earth(b) Ultraviolet radiation from sun(c) Solar flares(d) Radiation from distant stars |
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Answer» Right option is (b) Ultraviolet radiation from sun For explanation I would say: The ionosphere owes its existence to the ultraviolet radiation from the sun. The photons possess a certain amount of energy which is enough to break down electrons from their parent atom. The result is a large number of free, negatively charged, electrons and positively charged atoms and molecules called ions. |
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