Assertion :Television signals are received through sky wave propagation. Reason: The ionosphere reflects electromagnetic waves of frequency greater than a certain critical frequency.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is D Both Assertion and Reason are incorrect
1) $T V$ signals (frequency greater than $30 M H z$ ) cannot be propagated through sky wave propagation.
2) Above critical frequency, an electromagnetic wave $p e n e t r a t e s$ the ionosphere and is not reflected by it.
Hence , both $A s s e r t i o n$ and $R e a s o n$ are $i n c o r r e c t$ .

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