Dear children, you listen to the social science program on radio with great enthusiasm. Which of the following is technically helpful for its transmission?
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Ionosphere is helpful for the transmission of radio waves
Explanation:
A type of electromagnetic radiation, radio waves are best known for their use in communication devices such as television, cell phones and radios. The ionosphere will absorb radio waves aimed back towards the Earth in the sky due to the ability of ionized atmospheric gases to refract high frequency radio waves. The ionosphere is the ionized portion of the upper atmosphere of the Earth, a area that includes the thermosphere and portions of the mesosphere and exosphere, ranging from about 60 km to 1,000 km in altitude. Solar radiation ionizes the ionosphere.
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