Which of the following statements is incorrec | vedclass

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(D) The ionosphere is a region of the Earth's upper atmosphere that is ionized by solar and cosmic radiation. This ionization process creates a plasma

Vedclass · Accepted Answer

Ionization of gases in the ionosphere is caused by radio waves.

Vedclass · Answer

(D) The ionosphere is a region of the Earth's upper atmosphere that is ionized by solar and cosmic radiation. This ionization process creates a plasma consisting of free electrons and positive ions. Because of the presence of these free electrons,the ionosphere reflects radio waves back to the Earth,acting like a $Mirror$. However,the ionization itself is caused by high-energy radiation (ultraviolet,$X$-rays) from the Sun and cosmic sources,not by the radio waves themselves. Therefore,the statement that ionization is caused by radio waves is incorrect.

Which of the following statements is incorrect?

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