InterviewSolution
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InterviewSolution
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The peak of ionisation density, within the ionosphere, occurs neither at very low nor at very great heights; it occurs at some intermediate height. This is because at these intermediate heights, the(1) Intensity of solar radiation, as well as the molecular concentration (of air molecule) attain their peak values. (2) Intensity of solar radiation is at its peak, the molecular concentration (of air molecules) is also reasonably high. (3) Intensity of solar radiation is reasonably high; the molecular concentration (of air molecules) is at its peak value.(4) Intensity of solar radiation, as well as the molecular concentration (of air molecules) are both reasonably high. |
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Answer» Correct option: (4) Explanation: The solar radiation is intense at great heights; the molecular concentration (of air molecules) is very high near the surface of the earth. At intermediate heights, both these terms are reasonably high; this results in a peak of ionisation density only at intermediate heights. |
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