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Questions  >>  CBSE XII  >>  Physics  >>  Electromagnetic waves
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Q)

It is necessary to use satellites for long distance T.V transmission . Why ?

$\begin{array}{1 1} \text{They are reflected by ionosphere} \\\text{They are not reflected by ionosphere} \\ \text{Television signals are of low frequency } \\ \text{They are of very short wave length}\end{array} $

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A)
Solution :
Television signal are of high frequencies , hence they are not reflected by the ionosphere.
Hence to reflect them satellite are needed.
This is the reasons, why satellites are used for long distance T.V transmission .
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